Cat No. 7D2543. By detecting early markers of Hepatitis B infection, the Alere Determineâ?¢ HBsAg helps to diagnose acute infection and confirm chronic infection - allowing healthcare professionals to initiate prompt and appropriate follow-up action for infected patients. Rapid in-vitro qualitative ICT for detection of HBsAg Sample Type: Serum/Plasma/Whole Blood Sample Volume: 50�µL Early marker of infection- helps in diagnosis Facilitates appropriate follow-up of infected patients Collection can be done by fingerprick or venipuncture Clear, dependable results in 15 minutes Quick Reference Card for the detection of HBsAg in human serum/plasma or whole blood.