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Complete Blood Count (CBC)

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To see if the white blood cell (WBC, leukocyte) count is good and how the cells look on the smear, your doctor will look at both the number (WBC count) and the WBC differential. To see whether there are too many or too few of a certain type of cell, your doctor will look at the total count and the percentage of that particular cell. There are normal values for the total number of each type of white cell.

Pregnancy can change these blood values. Your doctor will talk with you about normal values during each trimester of your pregnancy.

White blood cell (WBC, leukocyte) count 1
Men and nonpregnant women:

5,000–10,000 WBCs per cubic millimeter (mm3) or 5.0–10.0 x 109 WBCs per liter (L)

 

White blood cell types (WBC differential) 1
Neutrophils:

50%–62%

Band neutrophils:

3%–6%

Lymphocytes:

25%–40%

Monocytes:

3%–7%

Eosinophils:

0%–3%

Basophils:

0%–1%

 

Red blood cell (RBC) count 1
Men:

4.5–5.5 million RBCs per microliter (mcL) or 4.5–5.5 x 1012/liter (L)

Women:

4.0–5.0 million RBCs per mcL or 4.0–5.0 x 1012/L

Children:

3.8–6.0 million RBCs per mcL or 3.8–6.0 x 1012/L

Newborn:

4.1–6.1 million RBCs per mcL or 4.1–6.1 x 1012/L

 

Hematocrit (HCT) 1
Men:

42%–52% or 0.42–0.52 volume fraction

Women:

36%–48% or 0.36–0.48 volume fraction

Children:

29%–59% or 0.29–0.59 volume fraction

Newborns:

44%–64% or 0.44–0.64 volume fraction

 

Hemoglobin (Hgb) 1
Men:

14–17.4 grams per deciliter (g/dL) or 140–174 grams per liter (g/L)

Women:

12–16 g/dL or 120–160 g/L

Children:

9.5–20.5 g/dL or 95–205 g/L

Newborn:

14.5–24.5 g/dL or 145–245 g/L

In general, a normal hemoglobin level is about one-third the value of the hematocrit.

1 | 2 | 3 | 4 | 5 | 6 | 7

WebMD Medical Reference from Healthwise

Last Updated: August 06, 2012
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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