Which of the following reagents is used to enhance the detection of weak D antigens on red blood cells?

A Anti-IgG
B Anti-C3d
C Polybrene ✓
D Lissamine green

Explanation

Polybrene is a reagent used to enhance the detection of weak D antigens on red blood cells.

Source

Technical Manual of the American Association of Blood Banks
Hematology Hematology: Blood Grouping and Crossmatching Hematology: Blood Grouping and Crossmatching Hard MEDICAL Confidence: medium