ASCP ASCP-MLT Question Answer
A positive spot test shows agglutination of horse erythrocytes when added to patient serum previously absorbed with guinea pig kidney, but not when added to patient serum previously absorbed with beef erythrocyte stroma. The test is generally simple, sensitive, and specific, but false negative are common in young children with mononucleosis.
The most common rapid slide test (MONOSPOT©) for infectious mononucleosis employs: