Complete Blood Count(CBC) is one of the most commonly ordered blood tests. Download the PPT by DR Satish K Dham of Umkal Hospital.

1. CBC COMPONENTS
DR SATISH K DHAM
SENIOR CONSULTANT
INTERNAL MEDICINE
Umkal Hospital, Gurgaon

2. CBC COMPONENTS
• RED BLOOD CELLS(RBC)
• HEMATOCRIT(HCT)
• HEMOGLOBIN(HB)
• MEAN CORPUSCULAR VOLUME(MCV)
• MEAN CORPUSCULAR HEMOGLOBIN(MCH)
• MEAN CORPUSCULAR HEMOGLOBIN CONCENTRATION(MCHC)
• RED CELL DISTRIBUTION WIDTH(RDW)
• WHITE BLOOD CELLS(WBC)
• PLATELETS
• MEAN PLATELET VOLUME(MPV)

3. RBC
 Transport hemoglobin which carries O2 from lungs to tissues.
 Produced by bone marrow and stimulated by erythropoietin from
kidney
 Values-Males 4.2-5.80
 Females 3.80-5.20

4. HEMOGLOBIN AND HEMATOCRIT
 MALES- 13-17g/l
 Females-11.5 15.5g/l
 Hematocrit: Percentage of the volume of whole blood that is made up
of red cells
 M-38-54%
 F 34-46%

5. HEMATOCRIT

6. MCV AND MCH
 MCV-Mean corpuscular volume-80to100 fl
 Microcytic < 80Fl
 Normocytic between 80-100 fl
 Macrocytic>100 fl
 MCH-Mean corpuscular hemoglobin—27to34pg
 Average mass of hemoglobin per red blood cell.
 Decreased-Hypochromic
 Normal-Normochromic
 Increased-hyperchromic

7. MCHC AND RDW
 MCHC – mean corpuscular hemoglobin concentration is a
measure of the concentration of hemoglobin in a given
volume of packed red blood cell.
Hemoglobin/hematocrit.32-36g/dl
 Shows that someone's red cells do not have enough
hemoglobin
 RDW-red cell distribution width. This is a corelate with the
degree of anisocytosis or variation in the red cell width
 Normal range 10-15%

8. Reticulocytes
 Reticulocyte count measures the percentage of
immature red cells in the blood and reflects bone
marrow production of RBCNormal value-1-2%
 Decreased production Retics<2%
 Increased destruction Retics>2%

9. PLATELETS AND MEAN PLATELET
VOLUME
 Normal values 1.5-3.5l/m3
 In doubt ask for peripheral smear
 Mean platelet volume is 9.4-12.3 fl
 High MPV-in low platelet count bone marrow producing
platelets and releasing in circulation.
 Low MVP-low platelet count

16. Thank You
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