Description
Why It’s Done:
The test is recommended when there is a clinical suspicion of infection caused by rapidly growing mycobacteria. These organisms can cause:
• Pulmonary infections (especially in individuals with lung disease or immunocompromised conditions)
• Skin and soft tissue infections (often following surgery, trauma, or cosmetic procedures)
• Catheter-related infections
• Post-surgical wound infections
• Disseminated infections in immunocompromised patients (e.g., HIV/AIDS, chemotherapy recipients)
The test helps in:
• Confirming the presence of rapid-growing mycobacteria
• Guiding antibiotic therapy, as RGMs may be resistant to standard TB drugs
• Monitoring treatment response
Preparation:
For patients:
• No special preparation like fasting is usually required.
• You may be asked to provide a sputum sample or allow collection of a biopsy or other relevant specimen based on the infection site.
• Inform your healthcare provider about any medications you’re taking, especially antibiotics, as they may interfere with test results.
• If you’re undergoing a surgical or invasive sample collection (e.g., biopsy or aspiration), follow pre-procedure instructions provided by your doctor.
For specimen collection:
• Sterile technique is essential to avoid contamination.
• Specimens should be transported to the laboratory promptly and handled according to microbiological standard


