Table 1.

Tube method (saline) titer of donor platelet unit with agglutinin reaction strength at room temperature and at 37°C.

Titer	Room temperature at 30 minutes	37°C (IgG) at 30 minutes
1	4+	4+
2	4+	4+
4	4+	4+
8	4+	4+
16	4+	4+
32	4+	4+
64	4+	3+
128	4+	3+
256	3+	2+
512	1+	2+
1024	Negative	Negative
2048	Negative	Negative
4056	Negative	Negative