What is the purpose of using a 'pre-warm' technique in crossmatching?

A To increase the sensitivity of the test ✓
B To reduce the risk of hemolysis
C To enhance the detection of IgM antibodies
D To improve the compatibility of blood components at colder temperatures

Explanation

The pre-warm technique is used to increase the sensitivity of the crossmatch test by incubating the blood samples at a warmer temperature, which can help to detect weaker antibodies.

Source

Transfusion medicine guidelines and research articles
Hematology Hematology: Blood Grouping and Crossmatching Hematology: Blood Grouping and Crossmatching Hard MEDICAL Confidence: medium