Blood Complete Picture

By Abdullah Bin Khurram

Definition

It’s a laboratory technique which includes quantification of cellular components of

blood. It has Hb, Haematocrit, RBCcount, MCV, MCH, MCHC, total & differential

leukocyte count and Platelet count

WBC Count

• Normal Range: 4,500 to 10,000 per microliter

• Leucopenia – Less WBCs

• Leucocytosis – More WBCs

RBC Count

• Normal Range:– In Males: 5.2 million

per mm3

– in Females: 4.7 million per mm3

• Polycythemia• Anemia

Haemoglobin Concentration

• It is the mass of hemoglobin found per liter in body

• Normal Range– In Males: 16 g/dL– In Females: 14 g/dL

Hematocrit

• Also Packed Cell Volume (PCV)

• It is the percentage of cells in blood

• Normal Range– Males: 45%– Females: 40%– Newborn: 54%

RBC Distribution Width

• It is a measure of the variation of red blood cell (RBC) width

• Normal RBC diameter is 6-8μm

• Normal Range:

11% – 15%

Mean Corpuscular Volume (MCV)

• It is a measure of the average red blood cell volume (i.e. size)

• Normal Value:

90 μm3

Mean Corpuscular Haemoglobin (MCH)

• The MCH is the average amount of hemoglobin in each RBC.

• Normal Value:

30 pg

Mean Corpuscular Haemoglobin Concenteration (MCHC)

• It is a measure of the concentration of hemoglobin in a given volume of packed red blood cell.

• Normal value: 34%

Platelets Count (PLT)

• Also Thrombocyte Count

• Normal Range: 150,000 to 450,000 platelets per microliter of blood