. Author manuscript; available in PMC: 2011 Jun 15.

Published in final edited form as: Am J Vet Res. 2011 Feb;72(2):203–209. doi: 10.2460/ajvr.72.2.203

Table 4.

Strength of agglutination in anti-A or anti-B antibody reactions with CARD, SLIDE, and TUBE methods used to type feline blood.

Typing method	Negative test results			Positive test results
Typing method	No. of cats tested	0	1+	No. of cats tested	2+	3+	4+
TUBE	463	455 (98)	8 (2)	517	12 (2)	159 (31)	346 (67)
SLIDE	458	439 (96)	19 (4)	516	22 (4)	232 (45)	262 (51)
CARD	52	50 (96)	2 (4)	64	23 (36)	25 (39)	16 (25)

Data are reported as number (%).

For these methods, agglutination of RBCs was scored in a suspension from 0 to 4+, with 0 or 1+ considered a negative result and ≥ 2+ considered a positive result. There were relatively fewer 1+ and 2+ results for TUBE and SLIDE methods than for the CARD method, making the distinction between positive and negative results greater for the TUBE and SLIDE methods.