Quick Review Cards for Medical Laboratory Science

Grading Reactions—Tube Versus Gel Immunohematology Review 438

TUBE* GEL

4+

3+

2+

1+

Mixed field

Neg

*In tube testing, hemolysis is also a pos rxn.

Solid band of agglutinated RBCs at top

Band of agglutinated RBCs near top with a few staggered below

Agglutinates throughout

Agglutinates predominantly in lower half of column with some

RBCs at bottom

Layer of agglutinated RBCs at top & pellet of unagglutinated RBCs

at bottom

Well-defined pellet of unagglutinated RBCs at bottom

One solid agglutinate

Several large agglutinates

Medium-sized agglutinates, clear background

Small agglutinates, turbid background

Some agglutinated RBCs in sea of free RBCs

No agglutinates