Description
This test is designed to detect the presence of acid-fast bacilli (AFB) in cerebrospinal fluid (CSF). It’s primarily used to diagnose tuberculous meningitis, a severe form of extrapulmonary tuberculosis affecting the central nervous system. The test involves staining the CSF sample and examining it under a microscope for the presence of acid-fast bacilli. While a positive result can indicate the presence of mycobacteria, including Mycobacterium tuberculosis, a negative result doesn’t rule out infection. This test is often used in conjunction with culture tests, ADA levels, and molecular methods for a comprehensive diagnosis of tuberculous meningitis, especially in regions with high tuberculosis prevalence.
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