TB PCR Blood Test - Tuberculosis (TB) PCR Test (Blood)

Molecular test using Polymerase Chain Reaction (PCR) technique to detect genetic material (DNA) of Mycobacterium tuberculosis complex in whole blood sample (usually using specialized tubes like MB/BacT or IGRA tubes). Used primarily for diagnosing miliary TB or disseminated TB, where bacteria enter bloodstream, serious conditions common in immunocompromised patients like AIDS patients.