Real-Time Polymerase Chain Reaction (RT-PCR)
MTB; AFB; Acid Fast Bacili; Mycobacteria; Mycobacterial; MTB; TB
See Collection Instructions
Quest Diagnostics San Juan Capistrano
1-3 mL CSF or 5-10 mL Urine
5-10 mL gastric lavage/aspirate collect an early morning specimen, before food or water intake, in a sterile leak-proof container. Separate specimens collected on 3 consecutive days are recommended ; 2-5 mL pericardial fluid, peritoneal fluid, pleural fluid collected in a sterile leak-proof container; 2 grams fresh (unfixed) tissue collected in a sterile leak-proof container; or 1-3 mL whole blood collected in an EDTA (lavender-top) or ACD (yellow-top) tube is also acceptable.
Room Temp: Unacceptable; Refrigerated: 5 Days; Frozen: 30 Days
Un-neutralized gastric lavage/aspirate; Stool
Gastric lavage/aspirate: Must be neutralized (pH 6.5-7.5) with sodium bicarbonate within 4 hours of collection. Non-neutralized specimens are not acceptable. Separate specimens collected on 3 consecutive days are recommended. Indicate source in comments, on specimen and on batch sheet.