Nonpregnant adult

First trimester

Second trimester

Third trimester

Hematology

Hemoglobin (g/dL)

12–15.8

11.6–13.9

9.7–14.8

9.5–15.0

Hematocrit (%)

35.4–44.4

31.0–41.0

30.0–39.0

28.0–40.0

Mean corpuscular hemoglobin (pg/cell)

27–32

30–32

30–33

29–32

Mean corpuscular volume (m3)

79–93

81–96

82–97

81–99

Platelets (×10 6/L)

165–415

174–391

155–409

146–429

WBC (×10 3/mm 3)

3.5–9.1

5.7–13.6

5.6–14.8

5.9–16.9

Neutrophils (×10 3/mm 3)

1.4–4.6

3.6–10.1

3.8–12.3

1.0–3.6

Coagulation

PT (sec)

12.7–15.4

9.7–13.5

9.5–13.4

9.6–12.9

PTT (sec)

26.3–39.4

24.3–38.9

24.2–38.1

24.7–35.0

D-dimer (mug/mL)

0.22–0.74

0.05–0.95

0.32–1.29

0.13–1.7

Blood chemical constituents

Alanine transaminase (U/L)

7–41

3–30

2–33

2–25

Aspartate transaminase (U/L)

12–38

3–23

3–33

4–32

Alkaline phosphatase (U/L)

33–96

17–88

25–126

38–229

Amylase (U/L)

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