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CKD/ESRDCKD/ESRD&&
ManagementManagementNote-when viewing lab values in PPT-note that values are given as both as “common values” as also the specific values given in textbook (remember, sources vary slightly-think ranges.)2010
Bones can break, muscles can atrophy, Bones can break, muscles can atrophy, glands can loaf, even the brain can go to glands can loaf, even the brain can go to sleep without immediate danger to sleep without immediate danger to survival. But -- should kidneys fail.... survival. But -- should kidneys fail.... neither bone, muscle, nor brain could neither bone, muscle, nor brain could carry on. carry on.
Homer Smith, Homer Smith, Ph.D.Ph.D.
2
REVIEWREVIEW
Recall functions of the kidneys?Recall functions of the kidneys?
Recall normal creatinine & BUN; Recall normal creatinine & BUN; other lab tests?other lab tests?
Review Diagnostic ToolsReview Diagnostic Tools
CKD- Elderly Risk (Review)
•Older Adult-normal aging (plus co-morbidities) > risk kidney dysfunction/renal failure•Must:
•Identify/prevent damage•Monitor/risk multiple RX/OTC meds (altered renal blood flow/dec. renal clearance etc)•Monitor/risk associated with dehydration (ie diuretics)•Monitor/risk with dec ability to respond to changes to fluid/electrolyte status (manifestation may be atypical
Functions of the KidneysFunctions of the Kidneys
Regulates Regulates volumevolume and and compositioncomposition of of extracellular fluidextracellular fluid
Excretion of Excretion of nitrogenous waste nitrogenous waste productsproducts
BP control via BP control via renin-renin-angiotensin-angiotensin-aldosterone system- aldosterone system- Recall RAASRecall RAAS
Vitamin D activationVitamin D activation Acid-base balance Acid-base balance
(HCO3 & H) (HCO3 & H) regulation through regulation through process of _____, ____ process of _____, ____ and ______. and ______.
Prostaglandin Prostaglandin synthesissynthesis
Erythropoietin Erythropoietin productionproduction
filtration, secretion, reabsorpton
04/19/23 6
Functions of the Kidneys Functions of the Kidneys (cont)(cont)
Erythropoietin ReleaseErythropoietin Release If a patient has chronic renal failure, what If a patient has chronic renal failure, what
condition will occur?condition will occur? WHY???WHY???
EPO- glycoprotein hormone that controls erythropoiesis, or red blood cell production
Diagnostic Tools for Diagnostic Tools for Assessing Renal FailureAssessing Renal Failure
Blood TestsBlood Tests BUN elevated (norm 10-20 mg/dl) (text 10-BUN elevated (norm 10-20 mg/dl) (text 10-
30mg/dl)30mg/dl) Creatinine elevated (norm 0.6 - 1.2 mg/dl) (text Creatinine elevated (norm 0.6 - 1.2 mg/dl) (text
0.5-1.5mg/dl)0.5-1.5mg/dl) K elevated (text norm 3.5-5.0 mEq/L)K elevated (text norm 3.5-5.0 mEq/L) POPO4 4 elevated (text norm 2.8-4.5mg/dl)elevated (text norm 2.8-4.5mg/dl) Ca decreased (text norm 9-11mg/dl)Ca decreased (text norm 9-11mg/dl)
UrinalysisUrinalysis Specific gravity (text norm 1.003-1.030Specific gravity (text norm 1.003-1.030 Protein (text norm 0-trace)Protein (text norm 0-trace) Creatinine clearance (text norm 85-135ml/min)Creatinine clearance (text norm 85-135ml/min)
7
BUNBUN
Normal 8 - 20 mg/dl (text 10-Normal 8 - 20 mg/dl (text 10-30mg/dl)30mg/dl)
Nitrogenous waste product of Nitrogenous waste product of protein metabolismprotein metabolism
Unreliable in measurement of renal Unreliable in measurement of renal functionfunction Relevance assessed in conjunction with Relevance assessed in conjunction with
serum creatinineserum creatinine
8
CreatinineCreatinine
A waste product of muscle A waste product of muscle metabolismmetabolism
Normal value 0.6 - 1.2 mg/dl (text Normal value 0.6 - 1.2 mg/dl (text 0.5-1.5mg/dl)0.5-1.5mg/dl)
2 times normal = 50% damage 2 times normal = 50% damage 8 times normal = 75% damage8 times normal = 75% damage 10 times normal = 90% damage10 times normal = 90% damage Exception -Exception -
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severe muscular disease can severe muscular disease can greatly greatly serum creatinine levels serum creatinine levels
Diagnostic ToolsDiagnostic Tools
UltrasoundUltrasound X-RaysX-Rays Biopsy *most definitive*most definitive
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Chronic Renal Failure/ Chronic Renal Failure/ Chronic Kidney Disease (CKD)Chronic Kidney Disease (CKD)
Slow progressive renal disorder Slow progressive renal disorder related to nephron loss, occurring related to nephron loss, occurring over months to yearsover months to years
Culminates in End Stage Renal Culminates in End Stage Renal Disease (ESRD)Disease (ESRD)
11
Characteristics of CKD > ESRDCharacteristics of CKD > ESRD
Cause & onset often unknownCause & onset often unknown Loss of function precedes lab Loss of function precedes lab
abnormalitiesabnormalities Lab abnormalities precede symptomsLab abnormalities precede symptoms Symptoms (usually) evolve in orderly Symptoms (usually) evolve in orderly
sequencesequence Renal size is usually decreasedRenal size is usually decreased
12
Causes of CKDCauses of CKD *Diabetes*Diabetes *Hypertension*Hypertension GlomerulonephritisGlomerulonephritis Cystic disordersCystic disorders Developmental - Developmental -
CongenitalCongenital Infectious DiseaseInfectious Disease
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•NeoplasmsNeoplasms•Obstructive Obstructive disordersdisorders•Autoimmune Autoimmune diseases (lupus)diseases (lupus)•Hepatorenal failureHepatorenal failure•SclerodermaScleroderma•AmyloidosisAmyloidosis•Drug toxicity-Drug toxicity-((overuse some common overuse some common drugs, as aspirin, NSAID as drugs, as aspirin, NSAID as ibuprofen, cocaine and ibuprofen, cocaine and acetaminophen)acetaminophen)
NSAIDs-…cause prerenal ARF by blocking prostaglandin production > also alters local glomerular arteriolar perfusion… (reduces renal blood flow)
Glomerular Filtration Rate (GFR)-Glomerular Filtration Rate (GFR)-determine stage CKD determine stage CKD (most accurate (most accurate evaluation)evaluation)
24 hour urine for creatinine clearance24 hour urine for creatinine clearance Formula- Formula- urine creatinine X urine volumeurine creatinine X urine volume serum creatinineserum creatinine Can Can estimateestimate creatinine clearance by: creatinine clearance by:
140 – {age x weight (kg)}140 – {age x weight (kg)}
72 x serum creatinine72 x serum creatinine
What is What is normal GFR?
1490 - 120 mL/min
Stages of CKD (“old” Stages of CKD (“old” terminology)terminology) Reduced Renal ReserveReduced Renal Reserve Renal InsufficiencyRenal Insufficiency End Stage Renal Disease (ESRD)End Stage Renal Disease (ESRD)
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Stages of CKDStages of CKDNKF Classification SystemNKF Classification System
Stage 1: Stage 1: GFR > 90 ml/min despite GFR > 90 ml/min despite kidney kidney damagedamage
Stage 2:Stage 2: Mild reduction (GFR 60 – 89 Mild reduction (GFR 60 – 89 ml/min)ml/min)
1. GFR of 60 may represent 1. GFR of 60 may represent 50% 50% loss in function. loss in function.
2. Parathyroid hormones 2. Parathyroid hormones starts to starts to increase. increase. (why?)
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*kidneys unable to reabsorb calcium, blood calcium levels fall, stimulating continual secretion of parathyroid hormone to maintain normal calcium levels in blood.
During Stage 1 - 2During Stage 1 - 2
No symptomsNo symptoms
Serum creatinine doubles* Serum creatinine doubles* ((Up to Up to 50%50% nephron loss nephron loss
17
FYI-older adult- may impaired renal function even in presence of normal serum creatinine
Stages of CKDStages of CKDNKF Classification SystemNKF Classification System
Stage 3:Stage 3: Moderate reduction (GFR 30 – Moderate reduction (GFR 30 – 59 59 ml/min)ml/min)
1. Calcium absorption decreases 1. Calcium absorption decreases
(from the GI tract)(from the GI tract)
2. Malnutrition onset2. Malnutrition onset
3. Anemia3. Anemia
4. Left ventricular hypertrophy4. Left ventricular hypertrophy
18
Stages of CKDStages of CKDNKF Classification SystemNKF Classification System
Stage 4:Stage 4: Severe reduction (GFR 15 – Severe reduction (GFR 15 – 29 29 ml/min)ml/min)
1. Serum triglycerides1. Serum triglycerides
2. 2. HyperHyperphosphatemiaphosphatemia
3. Metabolic 3. Metabolic acidosisacidosis
4. 4. HyperHyperkalemiakalemia
19
Oops-trouble!
K Effect & EKG
During Stage 3 - 4During Stage 3 - 4
Signs and symptoms worsen if kidneys Signs and symptoms worsen if kidneys stressedstressed
ability to maintain homeostasisability to maintain homeostasis 75% nephron loss 75% nephron loss glomerular filtration rate, solute glomerular filtration rate, solute
clearance, ability to concentrate urine and clearance, ability to concentrate urine and secrete hormone secrete hormone
Symptoms: BUN & Creatinine, mild Symptoms: BUN & Creatinine, mild azotemia, anemiaazotemia, anemia
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Stages of CKD-Stages of CKD-NKF Classification NKF Classification SystemSystem
Stage 5: Kidney failure (GFR < 15 ml/min)Stage 5: Kidney failure (GFR < 15 ml/min) AzotemiaAzotemia Residual function < Residual function < 15% of normal15% of normal Excretory, regulatory, hormonal functions Excretory, regulatory, hormonal functions
severely impairedseverely impaired Metabolic Metabolic acidosis acidosis ((Kussmaul breathing))
Marked : BUN, Creatinine, PhosphorousMarked : BUN, Creatinine, Phosphorous Marked : Hemoglobin, Hematocrit, Marked : Hemoglobin, Hematocrit,
CalciumCalcium Fluid Fluid overloadoverload
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ESRD!!!
During Stage 5During Stage 5
Uremic syndrome develops- syndrome develops- affecting affecting allall body systems body systems can be diminished with early diagnosis & can be diminished with early diagnosis &
treatmenttreatment
Last stage of progressive Last stage of progressive CKDCKD FatalFatal if no treatment if no treatment
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Manifestations of Manifestations of Chronic UremiaChronic Uremia
Fig. 47-5
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Syndrome- combination of common symptoms
*greater build-up waste products = greater symptoms
What happens when What happens when kidneys don’t function kidneys don’t function
correctly?correctly?
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Manifestations of CKD -Manifestations of CKD -Nervous SystemNervous System
Mood swingsMood swings Impaired judgmentImpaired judgment Inability to concentrate and perform Inability to concentrate and perform
simple math functionssimple math functions Tremors, twitching, convulsionsTremors, twitching, convulsions Peripheral NeuropathyPeripheral Neuropathy
restless legs foot dropfoot drop
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Manifestations due to inc nitrogenous waste products, electrolyte imbalances, metabolic acidosis and axonal atrophy and
demyelination of nerve fibers & dec erythropoietin*
Manifestations of CRFManifestations of CRFSkinSkin
Pale, grayish-bronze colorPale, grayish-bronze color Dry scalyDry scaly Severe itchingSevere itching Bruise easily, petechiae, ecchymosisBruise easily, petechiae, ecchymosis *Uremic frost*Uremic frost
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*Manifestations due to…calcium-phosphate deposition in skin, sensory neuropathy, platelet abnormalities; urea crystallizes (uremic frost) >if BUN extremely high
Walsh S and Parada N. N Engl J Med 2005;352:e13
Medical Mystery? What do lab studies, etc indicate ? What causes uremic frost?
*57-year-old with HTN and CKD (Stage 5), refused dialysis found in respiratory distress after week of upper respiratory symptoms due to viral infection
Before admission to hospital >developed asystolic cardiac arrest, was resuscitated by EMT, admitted to ICU, required vasopressor support.
PE- diffuse deposits tiny white crystalline material on skin > lab studies- BUN 208 mg/dl; creatinine 15 mg/dl; bicarbonate level 5 mmol per liter; anion gap-26; arterial pH of 6.74, and arterial partial pressure of carbon dioxide of 50 mm Hg. Blood cultures- revealed-Staphylococcus aureus pneumonia, likely due to prior influenza infection. *Aggressive care measures withdrawn after consultation with patient's family >patient died.
*Uremic frost- uncommon skin manifestation due to profound azotemia; occurs when urea and other nitrogenous waste products accumulate in sweat and crystallize after evaporation.
Manifestations of CKDManifestations of CKDEyesEyes
Visual blurringVisual blurring Occasional blindnessOccasional blindness ““Red eye””
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Due to calcium-phosphate deposits in eyes
Manifestations of CKD Manifestations of CKD Fluid - Electrolyte - pHFluid - Electrolyte - pH
Volume expansion and fluid overloadVolume expansion and fluid overload Metabolic Metabolic AcidosisAcidosis Electrolyte ImbalancesElectrolyte Imbalances
Potassium Potassium MagnesiumMagnesium
SodiumSodium
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Due to impaired kidneys unable to excrete acid load (mostly from NH3); defective
reabsorption/regeneration of HCO3.
Due to dec excretion by kidneys, breakdown of cellular protein, bleeding,
metabolic acidosis, food, drugs, etcKidneys unable to excrete (too much magnesium causes hyporeflexia and can
lead to cardiac arrest)
Kidneys retain > water retention> fluid overload
Manifestations of CKDManifestations of CKDGI Tract/Bleeding RiskGI Tract/Bleeding Risk
Uremic fetor Uremic fetor Anorexia, nausea, vomitingAnorexia, nausea, vomiting GI bleeding GI bleeding Anemia Platelet dysfunction
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Due to GI irritation, platelet defect; diarrhea from hyperkalemia
Anemia-due to insufficient production of erythropoietin, protein naturally produced in functioning kidneys…circulates through bloodstream to bone marrow, stimulating production of RBCs. Platelet dysfunction-subnormal platelet aggregation -due to
fibrinogen fragments, usually absent in normal human blood but present in uremic plasma may lead to platelet dysfunction in uremia.
Manifestations of CKD-Manifestations of CKD-MusculoskeletalMusculoskeletal
Muscle crampsMuscle cramps Soft tissue calcificationsSoft tissue calcifications WeaknessWeakness Related to Related to calcium phosphorous
imbalancesimbalances RENAL OSTEODYSTROPHYRENAL OSTEODYSTROPHY
Fracture risk!Fracture risk!
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Manifestations of CKD- Heart & Manifestations of CKD- Heart & LungsLungs
HypertensionHypertension Heart failure > pulmonary edema Heart failure > pulmonary edema Pericarditis due to uremia due to uremia Pulmonary edemaPulmonary edema Pleural effusions- Pleural effusions- ““Uremic Lung”Uremic Lung” Atherosclerotic vascular disease*Atherosclerotic vascular disease* Cardiac dysrhythmias Cardiac dysrhythmias (from HF, (from HF,
electrolyte imblaances)electrolyte imblaances)
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*Major Problem!
Manifestations of CKD- Endocrine Manifestations of CKD- Endocrine - Metabolic- Metabolic
ErythropoietinErythropoietin HypothyroidismHypothyroidism Insulin resistanceInsulin resistance Growth hormone Growth hormone Gonadal dysfunctionGonadal dysfunction Parathyroid hormone and Vitamin Parathyroid hormone and Vitamin
DD33
HyperlipidemiaHyperlipidemia33
Treatment OptionsTreatment Options
Conservative Conservative Therapy * Therapy * (Severe (Severe restrictions, dietary, fluids maintain renal restrictions, dietary, fluids maintain renal function as long as possible- if GFR > 10ml/min)function as long as possible- if GFR > 10ml/min)
HemodialysisHemodialysis Peritoneal DialysisPeritoneal Dialysis TransplantTransplant Nothing > DeathNothing > Death
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Conservative Treatment GoalsConservative Treatment Goals
Detect/treat potentially reversible Detect/treat potentially reversible causes of renal failurecauses of renal failure
Preserve existing renal functionPreserve existing renal function Treat manifestationsTreat manifestations Prevent complicationsPrevent complications Provide for comfortProvide for comfort
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Conservative Treatment Control Control
HyperkalemiaHyperkalemia HypertensionHypertension HyperphosphatemiaHyperphosphatemia HyperparthryoidismHyperparthryoidism AnemiaAnemia HyperglycemiaHyperglycemia DyslipidemiaDyslipidemia HypothyroidismHypothyroidism Nutrition : Describe a : Describe a renal dietrenal diet??
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Depends on lab values-usually low NA, K, restricted protein, phosphorous, & fluids (See text)
Hemodialysis
Removal of soluble substances and water from the Removal of soluble substances and water from the blood by blood by diffusiondiffusion through a semi-permeable through a semi-permeable membrane.membrane.
Early animal experiments began 1913Early animal experiments began 1913 1st human dialysis 1940’s by Dutch physician Willem 1st human dialysis 1940’s by Dutch physician Willem
Kolff (2 of 17 patients survived)Kolff (2 of 17 patients survived) Considered experimental through 1950’s, No Considered experimental through 1950’s, No
intermittent blood access; for acute renal failure only. intermittent blood access; for acute renal failure only. 1960 Dr. Scribner developed Scribner Shunt-1960’s 1960 Dr. Scribner developed Scribner Shunt-1960’s
machines expensive, scarce, no funding.machines expensive, scarce, no funding. ““Death Panels” panels within community decided who Death Panels” panels within community decided who
got to dialyze.got to dialyze.
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Hemodialysis ProcessHemodialysis Process
Blood removed from patient into Blood removed from patient into extracorporeal circuit. extracorporeal circuit.
Diffusion and ultrafiltration take and ultrafiltration take place in dialyzer. place in dialyzer.
Cleaned blood returned to patient. Cleaned blood returned to patient.
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Extracorporeal CircuitExtracorporeal Circuit
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How Hemodialysis WorksHow Hemodialysis Works
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How Dialysis Works-Interactive!
An Introduction to Dialysis-How Stuff Works! (Step by Step)
YouTube- Hemodialysis! Great!
.
Vascular Access (click)
Arterio-venous shunt (External Arterio-venous shunt (External Shunt) *used now for Continuous Shunt) *used now for Continuous Renal Replacement Therapy (CRRT)-Renal Replacement Therapy (CRRT)-temporary accesstemporary access
Arterio-venous (AV) Fistula Arterio-venous (AV) Fistula (AKA-native (AKA-native or primary fistula)or primary fistula)
PTFE GraftPTFE Graft Temporary cathetersTemporary catheters ““Permanent” cathetersPermanent” catheters
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External Shunt External Shunt (Schribner Shunt)(Schribner Shunt)
External- one end External- one end into artery, one into into artery, one into vein. vein.
AdvantagesAdvantages place at bedsideplace at bedside use immediatelyuse immediately
DisadvantagesDisadvantages infectioninfection skin erosionskin erosion accidental separation accidental separation limits use of limits use of
extremityextremity *Used now only for *Used now only for
CRRT-temporary CRRT-temporary 43
Arterio-venous (AV) Arterio-venous (AV) FistulaFistula
Primary (native) FistulaPrimary (native) Fistula Patients own artery and vein surgically Patients own artery and vein surgically
anastomosed.anastomosed. AdvantagesAdvantages
patient’s own vein/arterypatient’s own vein/artery longevitylongevity low infection and thrombosis rateslow infection and thrombosis rates
DisadvantagesDisadvantages long time to mature, 1- 6 monthslong time to mature, 1- 6 months ““steal” syndrome steal” syndrome requires needle sticks requires needle sticks
davita.com davita.com
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PTFE PTFE (Polytetraflourethylene) (Polytetraflourethylene)
GraftGraft Synthetic “vessel” anastomosed into an artery and Synthetic “vessel” anastomosed into an artery and
vein.vein. AdvantagesAdvantages
for people with inadequate vesselsfor people with inadequate vessels can be used in 1-4 weekscan be used in 1-4 weeks prominent vesselsprominent vessels
DisadvantagesDisadvantages clots easilyclots easily ““steal” syndrome more frequentsteal” syndrome more frequent requires needle sticksrequires needle sticks infection may necessitate removal of graftinfection may necessitate removal of graft
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Temporary CathetersTemporary Catheters Dual lumen catheter placed into a central vein-
subclavian, jugular or femoral. Advantages
immediate use no needle sticks
Disadvantages high incidence of infection subclavian vein stenosis poor flow-inadequate dialysis clotting Restricts movement
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Cuffed Tunneled Catheters Cuffed Tunneled Catheters ((Dacron cuffDacron cuff))
Dual lumen catheter with Dual lumen catheter with Dacron cuff surgically tunneled Dacron cuff surgically tunneled into subclavian, jugular or into subclavian, jugular or femoral vein.femoral vein.
AdvantagesAdvantages immediate use; immediate use;
*permanent/long term use*permanent/long term use can be used for patients that can be used for patients that
can have No other permanent can have No other permanent accessaccess
no needle sticksno needle sticks DisadvantagesDisadvantages
high incidence of infectionhigh incidence of infection poor flows result in poor flows result in
inadequate dialysisinadequate dialysis clottingclotting 47
Above Native fistula (in place for
over 20 years)
*Remember- assess circulation-listen for bruit, feel for thrill!
Buttonhole technique-individual cannulates own fistula for home dialysis YouTube video
“Temporary” vascular access catheters- if tunnelled, with Dacron cuff, can be used long-term as Permacath, below.
Care of Vascular AccessCare of Vascular Access
NO BP’s, needle sticksNO BP’s, needle sticks to arm with to arm with vascular access. This includes finger vascular access. This includes finger sticks.sticks.
Place ID bands on other arm Place ID bands on other arm whenever possible.whenever possible.
Palpate Palpate thrill thrill and listen for and listen for bruit.bruit. Teach patient nothing constrictive, Teach patient nothing constrictive,
feel for thrill.feel for thrill.
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Potential Potential Complications of HemodialysisComplications of Hemodialysis
During dialysisDuring dialysis Fluid and electrolyte related Fluid and electrolyte related
hypotensionhypotension CardiovascularCardiovascular
arrhythmiasarrhythmias Associated with the extracorporeal circuitAssociated with the extracorporeal circuit
exsanguinationexsanguination NeurologicNeurologic
Disequilibrium Syndrome & seizuresDisequilibrium Syndrome & seizures MusculoskeletalMusculoskeletal
crampingcramping OtherOther
fever & sepsisfever & sepsis blood born diseasesblood born diseases
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Potential Complications of HemodialysisPotential Complications of Hemodialysis
Between treatmentsBetween treatments Hypertension/HypotensionHypertension/Hypotension EdemaEdema Pulmonary edemaPulmonary edema HyperkalemiaHyperkalemia BleedingBleeding Clotting of accessClotting of access
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Long term Long term (due to (due to disease process & disease process &
managementmanagement) ) •MetabolicMetabolic•HyperparathyroidiHyperparathyroidismsm•Diabetic Diabetic complicationscomplications•CardiovascularCardiovascular
CHFCHFAV access failureAV access failureCardiovascular Cardiovascular diseasedisease
•RespiratoryRespiratoryPulmonary Pulmonary
edemaedema•NeuromuscularNeuromuscular
NeuropathyNeuropathy
Complications HemodialysisComplications Hemodialysis- - con’t-long con’t-long term, ESRDterm, ESRD
Long term cont’d Hematologic
anemia GI
bleeding dermatologic
calcium phosphorous deposits
Rheumatologic amyloid deposits
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Long term cont’d•Genitourinary
•infection•Sexual dysfunction
•Psychiatric•depression
•Infection•blood borne pathogens
Dietary Restrictions-HemodialysisDietary Restrictions-Hemodialysis
Fluid restrictionsFluid restrictions Phosphorous restrictionsPhosphorous restrictions Potassium restrictionsPotassium restrictions Sodium restrictionsSodium restrictions Protein to maintain nitrogen balance Protein to maintain nitrogen balance
((complete)complete) too high - waste productstoo high - waste products too low - decreased albumin, increased too low - decreased albumin, increased
mortalitymortality Calories to maintain or reach ideal weightCalories to maintain or reach ideal weight
53
Urine output + 500-600
Approx 800-1200 mg/day
Approx 1-2 g/day; 40 mg/kg/IBWApprox 1-2 g/day
Peritoneal Dialysis Removal of soluble substances and water from blood by Removal of soluble substances and water from blood by
diffusion diffusion through a semi-permeable membrane through a semi-permeable membrane (peritoneum) that is intracorporeal (inside body).(peritoneum) that is intracorporeal (inside body).
Solution warmed to body temperature Solution warmed to body temperature prior to prior to instillation into peritoneal cavity via peritoneal instillation into peritoneal cavity via peritoneal cathetercatheter
Metabolic waste products and excessive electrolytes Metabolic waste products and excessive electrolytes diffuse diffuse into dialysate while it remains in abdomeninto dialysate while it remains in abdomen
Fluid removal Fluid removal controlled by glucose (dextrosecontrolled by glucose (dextrose) ) concentration in dialysate (acts as “osmotic” agent)concentration in dialysate (acts as “osmotic” agent)
Excess fluid/solutes removed- gradual/constant-Excess fluid/solutes removed- gradual/constant- Fluid drained by gravity into sterileFluid drained by gravity into sterile bag at set bag at set
intervals- intervals- 1.1. ““Clear”Clear” solution ‘fills” abdomen solution ‘fills” abdomen2.2. ““Yellow”Yellow” urine-like fluid drains out (like urine, clear) urine-like fluid drains out (like urine, clear)3.3. Types of Peritoneal DialysisTypes of Peritoneal Dialysis
1.1. *CAPD*CAPD: Continuous ambulatory peritoneal dialysis: Continuous ambulatory peritoneal dialysis2.2. CCPD: Continuous cycling peritoneal dialysis/CCPD: Continuous cycling peritoneal dialysis/Aka. *APD – Aka. *APD –
Automated Peritoneal DialysisAutomated Peritoneal Dialysis3.3. IPD: Intermittent peritoneal dialysis (also)IPD: Intermittent peritoneal dialysis (also)
54
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1. Fill (inflow): fluid infused into peritoneal cavity (usually 10-15 min).
2. Dwell time (equilibrium): time solution (dialysate) fluid remains in peritoneal cavity (duration depends on method- as CAPD 4-5 exchanges/day).
3. Drain (equilibrium): time fluid drains from peritoneal cavity by gravity flow (usually 20-30 min); facilitate by gently massaging abdomen, changing position.
CAPD
Phases of Peritoneal Dialysis Exchange
CAPD APDCAPD APD Catheter into peritoneal cavityCatheter into peritoneal cavity Exchanges 4 - 5 times per dayExchanges 4 - 5 times per day Treatment 24 hrs; 7 days a Treatment 24 hrs; 7 days a
weekweek Solution remains in peritoneal Solution remains in peritoneal
cavity except during drain cavity except during drain timetime
Independent treatmentIndependent treatment
Automated Peritoneal Dialysis- fluid exchanges automatically by machine-(also known as continuous cycling peritoneal dialysis (CCPD), requires “cycler machine”- programmable- to automate filling and draining process.
Treatment at home, typically at night (while sleeping-thus no fluid in “the belly” at daytime
Click to play animation
Videos-Dialysis, all types! Click to locate desired video
Complications of Peritoneal of Peritoneal DialysisDialysis
InfectionInfection peritonitisperitonitis tunnel infectionstunnel infections catheter exit site catheter exit site
HypervolemiaHypervolemia hypertensionhypertension pulmonary edemapulmonary edema
HypovolemiaHypovolemia hypotensionhypotension
Hyperglycemia Hyperglycemia MalnutritionMalnutrition
ObesityObesity HypokalemiaHypokalemia HerniaHernia Cuff erosionCuff erosion Low back painLow back pain HyperlipidemiaHyperlipidemia
Peritoneal Catheter Exit SitePeritoneal Catheter Exit Site
58
Advantages of PDAdvantages of PD
Independence for patientIndependence for patient No needle sticksNo needle sticks Better blood pressure controlBetter blood pressure control Some diabetics add insulin to solutionSome diabetics add insulin to solution Fewer dietary restrictionsFewer dietary restrictions
protein loses in dialysateprotein loses in dialysate generally need increased potassiumgenerally need increased potassium less fluid restrictionsless fluid restrictions
59
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Multi-prong system occasionally used with PD patients in hospital settings
Which dialysis “bags” have already been infused?
The “yellow” ones!- dialysis nurse sets up bags, staff nurse infuses, drains according to schedule.
Medications - Dialysis Patients & CKD Dialysis Patients & CKD (Stages 4-5)(Stages 4-5)
Vitamins - water solubleVitamins - water soluble Phosphate binder - (Phoslo, Renagel, Calcium, - (Phoslo, Renagel, Calcium,
*Aluminum hydroxide-*Aluminum hydroxide-risksrisks) Give with meals) Give with meals Iron - don’t give with phosphate binder or calciumIron - don’t give with phosphate binder or calcium Antihypertensives – Antihypertensives – typicallytypically hold prior to dialysis hold prior to dialysis ErythropoietinErythropoietin Calcium Supplements - Calcium Supplements - BetweenBetween meals, meals, notnot with iron with iron Activated Vitamin DActivated Vitamin D3 3 - aids in calcium absorption- aids in calcium absorption Antibiotics - hold dose prior to dialysis if it dialyzes Antibiotics - hold dose prior to dialysis if it dialyzes
outout
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MedicationsMedications
Many drugs or their metabolites are excreted by the kidney
Dosages - many change when used in renal failure patients
Dialyzability - many removed by dialysis varies between HD and PD
63
Patient Patient EducationEducation
Alleviate fearAlleviate fear Dialysis processDialysis process Fistula/catheter careFistula/catheter care Diet and fluid restrictionsDiet and fluid restrictions MedicationMedication Diabetic teachingDiabetic teaching
64
Case StudyCase StudyA 48 year old female with a history of A 48 year old female with a history of
uncontrolled diabetes presents to the ER. Her uncontrolled diabetes presents to the ER. Her chief complaints are nausea, vomiting and chief complaints are nausea, vomiting and fatigue.fatigue.
Lab: BUN 100; Creatinine 10; H&H 7.0/21.4; Lab: BUN 100; Creatinine 10; H&H 7.0/21.4;
KK+ + 6.0, PO 6.0, PO4 4 5.5; Ca5.5; Ca++ ++ 7.57.5
What do you suspect? How would she possibly What do you suspect? How would she possibly be treated?be treated?
*Access *Access Evolve Apply Case Study- Chronic Renal Failure Chronic Renal Failure
*Access *Access Renal Case Study65
TransplantationTransplantation
TreatmentTreatment not not curecure
66
View also Organ Donation video
Kidney Awaiting TransplantKidney Awaiting Transplant
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“Old” kidneys typically left in place
Advantages Advantages DisadvantagesDisadvantages
Restoration of Restoration of “normal” renal “normal” renal functionfunction
Freedom from dialysisFreedom from dialysis Return to “normal” lifeReturn to “normal” life Reverses Reverses
pathophysiological pathophysiological changes related to RFchanges related to RF
Less expensive than Less expensive than dialysis after 1dialysis after 1stst year year
Life long Life long medicationsmedications
Multiple side Multiple side effects from effects from medicationmedication
Increased risk of Increased risk of tumortumor
Increased risk Increased risk infectioninfection
Major surgeryMajor surgery
Care of RecipientCare of Recipient
Major surgery with general anesthesiaMajor surgery with general anesthesia Assessment of renal functionAssessment of renal function Assessment of fluid and electrolyte Assessment of fluid and electrolyte
balancebalance Prevention of infectionPrevention of infection Prevention and management of rejectionPrevention and management of rejection
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Post-op Care
ATN? (acute tubular necrosis) ATN? (acute tubular necrosis) 50% experience50% experience
Urine output >100 <500 cc/hrUrine output >100 <500 cc/hr BUN, creatinine, creatinine clearanceBUN, creatinine, creatinine clearance Fluid Balance-careful monitorFluid Balance-careful monitor UltrasoundUltrasound Renal scansRenal scans Renal biopsyRenal biopsy
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Fluid & Electrolyte BalanceFluid & Electrolyte Balance
Accurate I & OAccurate I & O CRITICAL TO AVOID DEHYDRATIONCRITICAL TO AVOID DEHYDRATION Output normal - >100 <500 cc/hr, could be 1-2 Output normal - >100 <500 cc/hr, could be 1-2
L/hrL/hr Potential for volume overload/deficitPotential for volume overload/deficit
Daily weightsDaily weights Hyper/Hypokalemia potentialHyper/Hypokalemia potential HyponatremiaHyponatremia HyperglycemiaHyperglycemia
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Prevention of Prevention of InfectionInfection
Major complicationMajor complication of of transplantation due to transplantation due to immunosuppressionimmunosuppression
HANDWASHINGHANDWASHING AvoidAvoid Crowds, Kids Crowds, Kids Patient EducationPatient Education
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RejectionRejection Hyperacute Hyperacute - preformed antibodies to donor antigen- preformed antibodies to donor antigen
function ceases within 24 hoursfunction ceases within 24 hours Rx = removalRx = removal
AcceleratedAccelerated - same as hyperacute but slower, 1st week - same as hyperacute but slower, 1st week to monthto month Rx = removalRx = removal
Acute -Acute - generally after 1st 10 days to end of 2nd month generally after 1st 10 days to end of 2nd month 50% experience50% experience must differentiate between rejection and must differentiate between rejection and
cyclosporine toxicitycyclosporine toxicity Rx = steroids, monoclonal (OKTRx = steroids, monoclonal (OKT33), or polyclonal ), or polyclonal
(HTG) antibodies(HTG) antibodies ChronicChronic - gradual process of graft dysfunction- gradual process of graft dysfunction
Repeat rejection episodes- not completely resolved Repeat rejection episodes- not completely resolved with treatmentwith treatment
4 months to years after transplant4 months to years after transplant Rx = return to dialysis or re-transplantationRx = return to dialysis or re-transplantation 74
Immunosuppressant DrugsImmunosuppressant Drugs
Corticosteroids-Corticosteroids-PrednisonePrednisone Prevents infiltration Prevents infiltration
of T lymphocytesof T lymphocytes Side effectsSide effects
cushingnoid cushingnoid changeschanges
Avascular NecrosisAvascular Necrosis GI disturbancesGI disturbances DiabetesDiabetes infectioninfection risk of tumorrisk of tumor
Cytoxic AgentsCytoxic Agents--Azathioprine (Imuran); Azathioprine (Imuran); Mycophenolate Mycophenolate (*(*CellceptCellcept), *Cytoxin ), *Cytoxin (less toxic than Imuran)(less toxic than Imuran) PreventsPrevents rapid rapid
growing lymphocytesgrowing lymphocytes Side EffectsSide Effects
bone marrow toxicitybone marrow toxicity hepatotoxicityhepatotoxicity hair losshair loss infectioninfection risk of tumorrisk of tumor
Immunosuppressant DrugsImmunosuppressant Drugs
Calcineuin Inhibitors-Calcineuin Inhibitors-Cyclosporin, Neoral, Cyclosporin, Neoral, **PrograftPrograft, *, *FK506FK506 (more potent than (more potent than cyclosporincyclosporin)) Interferes Interferes with production of with production of
interleukin 2 which is interleukin 2 which is necessary for growth and necessary for growth and activation of T lymphocytesactivation of T lymphocytes..
Side EffectsSide Effects– NephrotoxicityNephrotoxicity– HTNHTN– HepatotoxicityHepatotoxicity– Gingival hyperplasiaGingival hyperplasia– InfectionInfection
Monoclonal Monoclonal antibody-antibody- OKT OKT33 - - used to treat used to treat rejection/induce rejection/induce immunosuppressionimmunosuppression decreases CDdecreases CD3 3 cells cells
within 1 hourwithin 1 hour Side effectsSide effects
anaphylaxisanaphylaxis fever/chillsfever/chills pulmonary edemapulmonary edema risk of infectionrisk of infection tumorstumors
1st dose reaction 1st dose reaction expected & wanted, expected & wanted, pre-treat with Benadryl, pre-treat with Benadryl, Tylenol, SolumedrolTylenol, Solumedrol
Immunosuppressant Drugs Immunosuppressant Drugs cont’dcont’d
Polyclonal antibody-Atgam-Polyclonal antibody-Atgam-treat rejection treat rejection or induce immunosuppressionor induce immunosuppression decreased number of T lymphocytesdecreased number of T lymphocytes
Side effectsSide effects anaphylaxisanaphylaxis fever chillsfever chills leukopenialeukopenia thrombocytopeniathrombocytopenia risk of infectionrisk of infection tumortumor
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Patient EducationPatient Education
Signs of infection Prevention of infection Signs of rejection
decreased urine output increased weight gain tenderness over kidney fever > 100 degrees F
Medications time, dose, side effects
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TransplantsTransplantsNotes from Organ Donation slides
Exclusion for Transplant not limited too Active vasculitis; or Life threatening extrarenal congenital
abnormalities; or Untreated coagulation disorder; or Ongoing alcohol or drug abuse; or Age over 70 years with severe co-morbidities; or Severe neurological or mental impairment, in
persons without adequate social support, such that the person is unable to adhere to the regimen necessary to preserve the transplant.
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Official Criteria for Deceased Official Criteria for Deceased DonorsDonors
Usually irreversible brain injuryUsually irreversible brain injury MVA, gunshot wounds, hemorrhage, anoxic brain MVA, gunshot wounds, hemorrhage, anoxic brain
injury from MIinjury from MI Must have effective cardiac functionMust have effective cardiac function Must be supported by ventilator to preserve organsMust be supported by ventilator to preserve organs Age 2-70Age 2-70 No IV drug use, HTN, DM, Malignancies, Sepsis, diseaseNo IV drug use, HTN, DM, Malignancies, Sepsis, disease Permission from legal next of kin & pronoucement of Permission from legal next of kin & pronoucement of
death made by MDdeath made by MD *Brain Death is the complete cessation of *Brain Death is the complete cessation of
all brain & brainstem function. It is death. all brain & brainstem function. It is death.
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Official Criteria for Living DonorsOfficial Criteria for Living Donors
Psychiatric evaluation Anesthesia evaluation Medical Evaluation
Free from diseases listed under deceased donor criteria
Kidney function evaluated Crossmatches done at time of
evaluation and 1 week prior to procedure
Radiological evaluation
Nurses Role in Event of Nurses Role in Event of Potential DonationPotential Donation
Notify TOSA of possible organ donation Identify possible donors Make referral in timely manner
Do not discuss organ donation with family Offer support to families after referral is
made & donation coordinator has met with family
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