Blood typing and transfusion therapy in a patient with A2 subtype acute myeloid leukemia M2: A case report

Table 1 ABO blood group serological test results of the patient and his family members

		Blood typing (column coagulation)		Blood typing (test tube)		Blood typing of father	Blood typing of mother	Blood typing of wife	Blood typing of daughter
		Johnson Biological	Changchun Boxun	At 4℃	At normal temperature
Positive typing	Anti-A	2+	1+	2+	1+	4+	0	4+	4+
	Anti-B	0	0	0	0	0	4+	4+	4+
	Anti-AB	3+	2+	2+	1+	4+	4+	4+	4+
Negative typing	Anti-H	3+	3+	3+	3+	0	0	0	0
	Ac	2+	1+	1+	1+	0	4+	0	0
	Bc	4+	4+	4+	4+	4+	0	4+	4+
	Oc	0	0	0	0	0	0	0	0
	Self-control	∕	∕	0	0	0	0	0	0
Blood typing test results		A2	A2	A2	A2	A	B	A	A

0: Negative; 1+: Most of the agglutinated red blood cells remained in the lower part of the column, where some red blood cells were visible; 2+: The agglutinated red blood cells were distributed throughout the column, and a small number of cells were visible at the bottom of the column; 3+: Most of the red blood cells that agglutinate remained in the upper part of the glass column; 4+: Red blood cells agglutinated above the column and formed a ring band.