Table: Hematologic Reference Ranges - Merck Veterinary Manual

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	63^a
(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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Hematologic Reference Ranges