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Poisoning
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1. TCA overdosesymptoms
-hyperthermia-anticholionergic effects: dilatedpupils, intestinal ileus-seizures-QRS prolongation-->ventricular arrhythmia-death: hypotension
2. Managment of pt withTCA overdose
-ABCs-Sodium bicarbonate --improves hypotension, longQRS, ventricle arrhythmia
3. EKG finding inhyperkalemia
-peaked T waves-long PR and QRS intervals-sine wave
4. antidotes ofanticholinesterasetoxicity (insecticides,physostigmine,donepezil)
atropine and pralidoxime
5. Most reliableindication of opioidtoxicity
*dec respiratory rate-miosis may or may not be seen
6. opioid intoxicationsymptoms
*decreased respiratory rate-hypotension, hypothermia, decbowel sounds, miosis
7. treatment of betablocker intoxication
-hypotension: IV fluids-bradycardia: Atropine-seizures: benzodiazepines(lorazepam)-IV glucagon, IV calcium salts,Vasopressor (epinephrine), highdose insulin and glucoseinfusions, Lipid emulsion therapy
8. Beta Blockerintoxicationsymptoms
bradycardia and hypotension
9. Benzodiazepineintoxicationsymptoms
drowsiness, slurred speech,unsteady gait
10. Treatment ofbenzodiazepineintoxication
Flumazenil
11. treatment of acuteopioid intoxication
naloxone- goal of inc respiratoryrate
12. Most importantfeature of TCAoverdose
-QRS prolongation: bestpredictor of seizures andventricular arrythmia
13. How do you decidewhether to administerthe antidote inacetaminophenpoisoning?
-draw serum acetaminophen levelsAFTER FOUR HOURS of overdose- Can administer N-acetylcysteinew/in 8 hrs of ingestion-four hours after ingestion isminimum to predict hepatotoxiceffects of acetaminophen overdose
14. cyanosis and pink hueto skin
Carbon monoxide poisoning
15. cyanosis and bluishskin color
Methemoglobinuria-due to antibiotics (trimethoprim,sulfonamides and dapsone),aniline dyes, nitrates-blue baby syndrome: infant drinksnitrates in water-tx: O2 + methylene blue
16. Symptoms of carbonmonoxide poisoning
-Headaches, N/V, abdominaldiscomfort, confusion, coma-pink hue to skin
17. Diagnosis of carbonmonoxide poisoning
-h/o smoke inhalation, furnaces-get carboxyhemoglobin levels
18. Treatment of carbonmonoxide poisoning
hyperbaric oxygen administration
19. Burning of rubber orplastic can result inwhat kind ofpoinoning?
cyanide poisoning (v automobiles,furnaces with carbon monxide)
20. Ethylene glycol vmethanol poisoningsymptoms
BOTH: substitutes for ethanol,metab anion gap acidosis, incosmolar gapmethanol: optic disc hyperemia,vision lossethylene: hypocalcemia, calciumoxalate deposits in kidney-hematuria, renal failure
21. Symptoms of aspirinoverdose
-anion gap metab acidosis, respalk-tinnitis, fever, hyperventilation
22. Opioid withdrawalsymptoms
anxiety, insomnia, flu-like symp,piloerection, fever, rhinorrhea,lacrimation, yawning, nausea,stomach cramps, diarrhea,mydriasis
23. Treatment ofmoderate to severesymptoms of opioidwithdrawal
-clonidine, buprenorphine,methadone
24. Treatment od mildsymptoms of opioidwithdrawal
antiemetics, muscle relaxants,NSAIDs
AC(E) USMLE Step 2 PoisoningStudy online at quizlet.com/_dn9i1
25. ethanol andsedativewithdrawal vsopioidwithdrawalfeatures
-NO SEIZURES in opioid withdrawal
26. Management ofpt who ingestedstronglyalkalinesubstance
-hospitalize, IV hydration, serialabdominal and chest XRs-endoscopy: assess esophageal damage-perforation? Gastrografin study
27. complicationsof ingestinglye/alkalinesubstance
-immediate esophageal damage -liquefactive necrosis of esophageal wallleading to perforation and mediastinitis
28. Symptoms ofingesting analkaline orcausticsubstance
dysphagia, severe pain, heavy salivationand mouth burns-necrosis of tissue lining the GI tract-perforation of the stomach or esophaguscan occur causing peronitis ormediastinitis
29. Drugs thatcauseNeurolepticMalignantSyndrome
dopaminergic antagonists, espciallytypical neuroleptics such as haloperidol
30. symptoms ofneurolepticmalignantsyndrome
-hyperthermia (fever), muscle rigidity,autonomic instability and mental statuschanges-elevated CK, leukocytosis
31. Symptoms ofethylene glycolpoisoning
-hypocalcemia, calcium oxalte depositionin kidneys--> flank pain, hematuria,oligouria, renal failure-anion gap metabolic acidosis
32. treatment ofethylene glycolpoisoning
-Fomepizole or ethanol (ADH inhibition)-Sodium bicarbonate to alleviate acidosis-hemodialysis if end organ damage
33. danger oftypicalantipsychoticmedication andcoldtemperature
-Fluphenazine (more potent than haldol)and other "typical" antipsychotics inhibitautonomic thermoregulation, can getextreme hhypothermia with prolongedexposure to cold-all patients taking antiipsychotic meds areadvised to avoid prolonged exposure toextreme temperatures
34. Symptoms inthe first 6-12hours ofalcoholcessation
-anxiety, insomnia, tremors, diaphoresis
35. Symptoms inthe first 48 hrsof alcoholcessation
-Hallucinations and withdrawal seizures-tachycardia, HTN,agitation, seizures
36. Symptoms within4-7 days of alcoholcessation
Delirium Tremens - HTN, agitation,tachycardia, delirium, possible death,autonomic instability-mortality rate 5%
37. Treatment ofalcoholwithdrawal
Benzodiazepines -eg chlordiazepoxide(Librium); CNS depressants that willlimit the effects of alcohol withdrawalhallucinations- haloperidol-thiamine, folate, multivitaminreplacement
38. Organophosphatepoisoningsymptoms
-inhibits acetylcholinesterase leading tocholinergic excess: bradycardia, miosis,rhonchi, muscle fasciculations,salivation, lacrimation, urination,defecation
39. Treatment oforganophosphatepoisoning
atropine, pralidoxime
40. Symptoms of Betablocker overdose
asthma exacerbation (wheezing),bradycardia, AV block, hypotension,potential cardiogenic shock
41. Treatment of betablocker overdose
-hypotension: IV fluids-bradycardia: Atropine-seizures: benzodiazepines (lorazepam)-IV glucagon, IV calcium salts,Vasopressor (epinephrine), high doseinsulin and glucose infusions, Lipidemulsion therapy
42. treatment of TCAoverdose
-Sodium bicarbonate narrows the QRScomplex (thus preventing ventriculararrhythmia) by increasing theextracellular sodium conc
43. Treatment ofneurolepticmalignantsyndrome
-dantrolene (muscle relaxant)-bromocriptine (dopamine agonist)-amantadine (antiviral withdopaminergic properties)
44. Benzodiazepineoverdose v opioidoverdose
benzos: NO severe respiratorydepression, NO pupillary constriction(usually but not always in opioidoverdose)
45. Benzodiazepineoverdose v alcoholand phenytoinintoxication
no nystagmus in benzos
46. Phenytoin toxicitysymptoms
horzontal nystagmus, cerebellar ataxia,confusion
47. Symptoms ofdiphenhydramineoverdose
-anti-histamine effects: drowsiness,confusion-anticholinergic effects: dry mouth,dilated pupils, blurred vision, reducedbowel sounds, urinary retention
48. Treatment ofdiphenhydramineoverdose
physostigmine, a cholinesteraseinhibitor
49. Management ofWarfarin inducedbleeding
-Fresh frozen plasma - immediatelyreverses action of warfarin-Vitamin K - takes 8-12 d to be effective
50. urgent reversal ofheparin
protamine sulfate
51. Vit A def night blindness, dry skin
52. Vit B1/thiaminedef
-beriberi: polyneuritis, dilatedcardiomyoppathy, high output CHF,edema-Wernicke-Korsakoff syndrome
53. Vitamin B2 def angular stomatitis, cheilosis, cornealvascularization
54. Vit B3/niacin def pellagra: diarrhea, dermatitis, dementia
55. Vit B5 def dermatitis, enteritis, alopecia, adrenalinsufficiency
56. Vit B6 def convulsions, hyperirritability; requiredduring INH treatment
57. VitB12/cobalamindef
macrocytic, megalobalstic anmeia,neuro symp, glossitis
58. Vit C def scurvy: swollen gums, bruising, anemia,poor wound healing
59. Vit D def rickets (in children - bending bones);osteomalacia in adults (soft bones);hypocalcemic tetany
60. Vit E def inc fragility of RBCs
61. Vit K def neonatal hemorrhage, inc PT and PTT;NOMRAL Bleeding time
62. Biotin def dermatitis, enteritiscaused by raw egg ingestion, orantibiotic use
63. folic acid def -Most common vit def in US-sprue, macrocytic, megaloblasticanemia, without neuroologic symp
64. Magnesium def -lead to def Ca2+ and K-weakness, muscle cramps,hypocalcemic tetany, CNShyperirritability, tremors,choreoathetoid movement
65. Selenium def Keshan disease (cardiomyopathy)
66. iron intoxicationsymptoms
five phases: 30 min- 6 hours after ingestion: GIphase (N/V, hematemesis, melena, abdpain)-6-24 hrs later: asx-72 hrs; shock, metabolic acidosis-12-96 hrs: hepatotoxicity-iron tox>350
67. Tx of NeurolepticMalignantSyndrome
-fever, muscle rigidity, auto instability,AMS-dantrolene (muscle relxant)+bromociptine (dopa agonist)+amantidine (antiviral with dopaproperties)
68. Tx of AV blockcaused by Betablocker intox
-atropine and IV fluids-glucagon
69. TCA overdose txpathophys
Sodium bicarbonate-alkalinize serum, TCA then lessprotein bound, dec bioavailability-Na+ reverses the sodium channelblocking effects of TCA
70. Bleomycin SE pulmonary fibrosis
71. cyclophosphamideSE
hemorrhagic cystitis
72. isoniazid SE vitamin B6 def, lupus like syndrome,liver toxicity
73. cyclosporine SE renal toxicity
74. ACE I SE cough, angioedema
75. demeclocycline SE diabetes insipidus
76. lithium SE diabetes insipidus, thyroid dysfunction
77. methoxyflurane SE diabetes insipidus
78. sulfa drugs SE allergy, kernicterus in neonates
79. halothane SE liver necrosis
80. phenytoin SE lateral gaze nystagmus, ataxia,hirsutism, folate deficiency, teratogen(cranio-facial abnorm), gumhypertrophy
81. vincristine SE peripheral neuropathy
82. amiodarone SE thyroid dysfunction, pulmonary toxicity
83. valproic acid SE neural tube defects in offspring
84. thioridazine SE -typical antipsychotic-retinal deposits, cardiac toxicity
85. vancomycin SE red man syndrome
86. quinolones SE cartilage damage-teratogen
87. quinine SE cinchonism (tinnitus, vertigo)
88. morphine SE sphincter of Oddi spasm
89. Clindamycin SE pseudomembranouscolitis
90. chloramphenicol SE gray babysyndrome, aplasticanemia
91. doxorubicin SE cardiomyopathy
92. bulsulfan SE pulmonary fibrosis
93. monoamine oxidase inhibitors SE tyramine crisis(after wine, cheese)
94. hydralazine SE lupus like syndrome
95. procainamide SE lupus like syndrome
96. minoxidil SE hirsutism
97. aminoglycosides SE ototoxicity, renaltoxicity
98. chlorpropamide SE -old sulfonylurea(its use no longerrecommended)-SIADH
99. didanosine SE pancreatitis,peripheralneuropathy
100. halogen anesthesia SE malignanthyperthermia
101. succinylcholine SE malignanthyperthermia, CI inhyperkalemia
102. Zidovudine SE bone marrowsupression
103. acetazolamide SE metabolic acidosis
104. HMG Co reductase inhibitors SE (simvastatin)-muscle and livertoxicity
105. ethambutol SE optic neuritis
106. metronidazole SE disulfiram reactionwith alcohol
107. cisplatin SE nephrotoxicity
108. methyldopa SE hemolytic anemia(coombs testpositive)
109. SE alpha 1 antagonists (terazosin,prazosin)
-first doseorthostatichypotension
110. antidepressant that causesdepression
methyldopa
111. antidote for cholinesteraseinhibitors (insect repellant,donepezil, rivastigmine,pyridostigmine)
-atropine,pralidoxime
112. antidote forquinidine or TCAs
sodium bicarbonate (cardio-protective)
113. antidote fordigoxin
normalize potassium and otherelectrolytes
114. antidote formethanol/ethyleneglycol
-stabilize with Sodium bicarb,benzodiazepine (anticonvulsant)-ethanol, fomepizole
115. antidote forbenzodiazepines(diazepam,alprazolam)
flumazenil
116. antidote for betablockers
glucagon
117. antidote for lead EDTA-use succimer for children
118. antidote forcopper or gold
penicillamine
119. antidote foropioids
naloxone
120. antidote formuscarinicblockers (exscopolamine, oratropine,ipratropium)
-physostigmine (cholinesteraseinhibitor)
121. aspirin and nasalpolyps
do not give aspirin to pts with nasalpolyps bc hypersensitivity reactionsinvolving an asthmatic attack
122. Drug inducedlupus
-sx: fever, myalgias, arthralgias,arthritis, erythematous rash insun exposed skin-drugs: procainamide, hydralazine,minocycline, diltiazem, penicillamine,isoniazid, quinidine, anti-TNF alphatherapy (infliximab and etanercept),INF-alfa, methyldopa, chlorpromazine
123. Metronidazole SE -inhibits acetaldehyde dehydrogenase:"disulfiram-like reaction" if taken withalcohol!!
124. how doesacetominophencause liver toxicity
-metabolizes to form mercapturic acid-needs conjugated to glutathione forexcretion-depletion of glutathione, mercapturicmetabolites bind to hepatocytes-->liver failure
125. metformintoxicity
-lactic acidosis-GI problems, nausea, diarrhea,anorexia, abd pain
126. salicylatepoisoning sx
tinnitis, fever, vertigo-anion gap metab acidosis + respalkalosis