Case Study 3: Subsequent Testing - LabCE.com, Laboratory Continuing Education

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Case Study 3: Subsequent Testing

The initial testing performed was an antibody panel performed with PEG additive:

	Rh-Hr							Kell						Duffy		Kidd		Lewis		MNSs				P₁	Lutheran		Xg
Cell Number	D	C	c	E	e	V	C^w	K	k	Kp^a	Kp^b	Js^a	Js^b	Fy^a	Fy^b	Jk^a	Jk^b	Le^a	Le^b	M	N	S	s	P₁	Lu^a	Lu^b	Xg^a	AHG
1	+	+	0	0	+	0	0	0	+	0	+	0	+	+	0	+	+	+	0	+	+	+	+	+	0	+	0	1+
2	+	+	0	0	+	0	+	+	+	0	+	0	+	+	+	0	+	0	+	0	+	+	+	+	0	+	0	1+
3	+	0	+	+	0	0	0	0	+	0	+	0	+	0	+	0	+	0	+	+	0	0	+	+	0	+	0	1+
4	+	0	+	0	+	+	0	0	+	0	+	0	+	0	0	+	0	0	+	+	+	+	0	+	0	+	0	1+
5	0	+	+	0	+	0	0	0	+	0	+	0	+	+	+	+	+	+	0	0	+	0	+	0	0	+	0	1+
6	0	+	0	+	+	0	0	+	+	0	+	0	+	0	+	+	0	0	+	+	+	+	+	0	0	+	0	1+
7	0	0	+	0	+	0	0	0	+	0	+	0	+	+	0	+	0	+	0	+	0	0	+	+	0	+	+	1+
8	0	0	+	0	+	0	0	0	+	0	+	0	+	+	+	0	+	0	+	+	+	+	+	0	0	+	0	1+
9	0	0	+	0	+	+	0	0	+	0	+	0	+	+	+	+	0	0	+	0	+	+	0	+	0	+	0	1+
10	+	0	+	0	+	0	0	+	+	0	+	0	+	0	+	0	+	0	+	0	+	+	0	+	0	+	+	1+
AC																												0√

Tube testing with PEG enhancement is slightly less sensitive than gel column testing, so the reactivity pattern was similar to the referring hospital's gel results. The testing MLS noticed a relatively tight agglutination pattern even though it was weaker, which can be an important clue in advanced blood bank testing.