cryptococcal antigen test

The cryptococcal antigen test detects a specific substance called antigen that’s released by the Cryptococcus fungus into the body. This fungus can cause serious infections, especially in people with weakened immune systems. The test usually involves taking a small blood or spinal fluid sample and checking it for the presence of this antigen. If the antigen is found, it indicates an active infection. This test helps doctors diagnose cryptococcal meningitis or other fungal infections early, so treatment can begin promptly to prevent serious health complications.