TABLE 20-1.

Complete Blood Count Findings at Admission in 38 Cats with Necropsy-Confirmed Feline Infectious Peritonitis at the UC Davis VMTH

Test	Reference Range	Percent below the Reference Range	Percent within the Reference Range	Percent above the Reference Range	Range for Cats with FIP	Number Tested
Hematocrit (%)	30-50	68	32	0	17-53	38
MCV (fL)	65-75	18	82	0	36-52	38
MCHC (g/dL)	33-36	5	58	37	28-36	38
RDW (%)	14-18	0	30	70	14-33	27
Neutrophils∗ (cells/µL)	2000-9000	3	26	71	416-49,313	38
Band neutrophils∗ (cells/µL)	0-rare	0	50	50	0-3251	38
Metamyelocytes (cells/µL)	0	0	95	5	0-276	38
Monocytes (cells/µL)	50-600	5	71	24	0-820	38
Lymphocytes (cells/µL)	1000-7000	58	42	0	89-6886	38
Eosinophils (cells/µL)	150-1100	71	29	0	0-770	38
Platelets (cells/µL)	180,000-500,000	37	44	19	30,000-874,000	27†

FIP, Feline infectious peritonitis; RDW, red cell distribution width.

^∗22 (58%) had evidence of toxic neutrophils.

^†A smear was evaluated manually for 37 of the 38 cats. The presence of macroplatelets were reported for 18 (49%) of cats.