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Hematologic Reference Ranges

By Susan E. Fielder, DVM, MS, DACVP (Clinical Pathology), Clinical Assistant Professor, Department of Pathobiology, Center for Veterinary Health Sciences (CVHS), Oklahoma State University

Hematologic Reference Ranges

Conventional (USA) Units

SI Units

Dog

Cat

Cow

Horse

Pig

Sheep

Goat

Rabbit

Llama

Vietnamese Potbellied Pig

Ostrich

PCV

%

× 10–2 L/L

35–57

30–45

24–46

27–43

36–43

27–45

22–38

33–50

29–39

22–50

32

Hgb

g/dL

× 10 g/L

11.9–18.9

9.8–15.4

8–15

10.1–16.1

10–16

9–15

8–12

10–17

12.8–17.7

7.8–16.2

12.2

RBCs

× 106/μL

× 1012/L

4.95–7.87

5.0–10.0

5.0–10.0

6.0–10.4

5–8

9–15

8–18

5–8

11.3–17.7

3.6–7.8

1.7

Reticulocytes

%

%

0–1.0

0–0.6

0–0.1

Absolute reticulocyte count

× 103/μL

× 109/L

<80

<60

MCV

fL

fL

66–77

39–55

40–60

37–49

50–68

28–40

16–25

58–67

20.9–28

55–71

174

MCH

pg

pg

21.0–26.2

13–17

11–17

13.7–18.2

17–21

8–12

5.2–8

18–24

61

MCHC

g/dL

× 10 g/L

32.0–36.3

30–36

30–36

35.3–39.3

30–34

31–34

30–36

29–37

43.1–46.6

31–36

33

Platelets

× 103/μL

× 109/L

211–621

300–800

100–800

117–256

200–500

800–1,100

300–600

250–650

204–518

MPV

fL

fL

6.1–10.1

12–18

3.5–6.5

4.0–6.0

WBCs

× 103/μL

× 109/L

5.0–14.1

5.5–19.5

4.0–12.0

5.6–12.1

11–22

4–8

4–13

5.2–12.5

7.5–21.5

5.2–17.9

5.5

Neutrophils

%

%

58–85

45–64

15–33

52–70

28–47

10–50

30–48

20–75

60–74

0–63

63a

(segmented)

× 103/μL

× 109/L

2.9–12.0

2.5–12.5

0.6–4.0

2.9–8.5

2–15

0.7–6.0

1.0–7.2

1–9.4

4.6–16

0–11.4

3.4

Neutrophils

%

%

0–3

0–2

0–2

0–1

0–4

0

rare

0–1

0–1

(band)

× 103/μL

× 109/L

0–0.45

0–0.3

0–0.1

0–0.1

0–0.8

0–0.35

0–0.19

Lymphocytes

%

%

8–21

27–36

45–75

21–42

39–62

40–55

50–70

30–85

13–35

15–55

34

× 103/μL

× 109/L

0.4–2.9

1.5–7.0

2.5–7.5

1.2–5.1

3.8–16.5

2–9

2–9

1.6–10.6

1–7.5

0.8–9.8

1.87

Monocytes

%

%

2–10

0–5

0–8

0–6

2–10

0–6

0–4

1–4

1–4

0–13

2.8

× 103/μL

× 109/L

0.1–1.4

0–0.9

0–0.9

0–0.7

0–1

0–0.75

0–0.55

0.05–0.5

0.05–0.8

0–0.67

0.15

Eosinophils

%

%

0–9

0–4

0–20

0–7

0.5–11

0–10

1–8

1–4

0–15

0–12

0.3

× 103/μL

× 109/L

0–1.3

0–0.8

0–2.4

0–0.8

0–1.5

0–1

0.05–0.65

0.05–0.5

0–3.3

0–0.73

0.02

Basophils

%

%

0–1

0–1

0–2

0–2

0–2

0–3

0–1

1–7

0–2

0

0.2

× 103/μL

× 109/L

0–0.14

0–0.2

0–0.2

0–0.3

0–0.5

0–0.3

0–0.12

0.05–0.9

0–0.4

0–0.61

0.01

M:E

0.75–2.5

0.6–3.9

0.3–1.8

0.5–1.5

1.2–2.2

0.77–1.7

0.7–1.0

Plasma proteins

g/dL

10 g/L

6.0–7.5

6.0–7.5

6.0–8.0

6.0–8.5

6–8

6–7.5

6–7.5

5.4–8.3

5.4–7.5

Plasma fibrinogen

mg/dL

g/L

150–300

150–300

100–600

100–500

200–400

100–500

100–400

200–400

100–400

100–400

Data on various species compiled and adapted in part from multiple sources, including Latimer KS, Duncan & Prasse’s Veterinary Laboratory Medicine: Clinical Pathology, 5th ed., Wiley-Blackwell, 2011; and Weiss DJ, Wardrop KJ, Schalm’s Veterinary Hematology, 6th Ed., Wiley-Blackwell, 2010. Reference ranges vary between laboratories. Values provided by the reference laboratory should be used.

MCV = mean corpuscular volume

MCH = mean corpuscular hemoglobin

MCHC = mean corpuscular hemoglobin concentration

MPV = mean platelet volume

M:E = myeloid:erythroid ratio

a Heterophil

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