Table 3.

In vitro test of the analytical detection limit of the Hemoccult II^® SENSA^® test using bovine feces and blood. The letters A, B and C are the repeated samples made on each mix of feces and whole blood (sub-batches). The letters “N” and “P” represents the negative and positive test results, respectively. Batches 1 and 2 were comprised of feces from two cows whereas Batches 3 and 4 were made with feces from one cow. Batches 2 and 3 were equal in both blood volumes and results, hence they were shown as one result. Likewise, the four sub-batches with 0 mL of blood added to the feces are shown as one result.

mL Blood per 1000 g of Feces [Batch Number]	Sample	Test Card
		Left well	Right well
0	A	N	N
	B	N	N
[1, 2, 3, 4]	C	N	N
0.25	A	N	N
	B	N	N
[4]	C	N	N
0.5	A	N	N
	B	N	N
[2, 3]	C	N	N
0.75	A	N	N
	B	N	N
[4]	C	N	N
1	A	N	N
	B	N	N
[4]	C	N	N
2	A	N	N
	B	N	N
[2, 3]	C	N	N
4.5	A	P	P
	B	P	P
[2, 3]	C	P	P
5	A	P	P
	B	P	P
[1]	C	P	P
25	A	P	P
	B	P	P
[1]	C	P	P
50	A	P	P
	B	P	P
[1]	C	P	P