Description
Urine, NA, Fasting or Non Fasting: As suggested by doctor
Sample Required:
Sputum, bronchial washings, tissue specimens, or other bodily fluids.
Test Time:
The test may take several weeks to provide results, as the samples need time to grow and be analyzed.
Test Normal Range:
The normal range does not apply to this test, as it is used to detect drug resistance in Mycobacterium tuberculosis.
What is the Test?
The AFB MDR Screen (MDRTB) is a laboratory test that helps detect Multi-Drug Resistant Tuberculosis (MDR-TB). This test is specifically designed to identify Mycobacterium tuberculosis strains that are resistant to at least two of the most potent anti-tuberculosis drugs, isoniazid, and rifampicin.
Test Procedure:
Similar to the conventional AFB culture, the sample (sputum, tissue, etc.) is collected and placed in a culture medium that supports the growth of mycobacteria. The culture is incubated, and trained laboratory professionals observe bacterial growth. If growth is observed, additional testing is performed to determine drug resistance.
When to Take the Test:
This test is ordered when there is a suspicion of drug-resistant tuberculosis or in cases where the initial treatment hasn’t shown improvement.
Who Should Take This Test:
Individuals who have been diagnosed with tuberculosis or are suspected of having tuberculosis and are at risk of drug-resistant strains may undergo this test.
Precautions for Exceptional Cases:
Pregnant individuals and those with compromised immune systems should inform their healthcare provider before taking the test.
FAQs:
Q1: Is MDR-TB common?
A: MDR-TB is a serious concern in regions with high rates of tuberculosis and inadequate treatment. It requires specialized treatment.
Q2: How is MDR-TB treated?
A: MDR-TB is treated with a combination of different antibiotics over an extended period. Treatment is complex and may involve second-line drugs.
Q3: What if my test results show drug resistance?
A: If drug resistance is detected, your healthcare provider will adjust your treatment regimen to target the specific resistant strains.
Q4: Can I transmit MDR-TB to others?
A: Yes, MDR-TB can be transmitted through the air like regular tuberculosis. It’s important to follow infection control practices.
Q5: Can MDR-TB be cured?
A: With proper medical care and adherence to treatment, many cases of MDR-TB can be successfully treated and cured. However, treatment is more challenging and takes longer than standard tuberculosis treatment.