Mycobacterium marinum DNA in Specimen by Qualitative Nucleic Acid Probe

Why This Test Might Be Ordered

Your healthcare provider may order this test if you have symptoms like skin lesions, lung issues, or other signs of infection after exposure to water, soil, or contaminated environments where *Mycobacterium marinum* is commonly found. It’s also used in cases where traditional bacterial cultures take longer to identify the cause of infection.

What to Expect Before the Test

No special preparation is needed. You’ll provide a sample (likely a swab or fluid) from the affected area, depending on your clinical situation. The test involves analyzing genetic material directly from your sample.

What the Test Results Mean

A positive result means the test detected genetic material from *Mycobacterium marinum*, suggesting an active infection. A negative result means the test did not find this genetic material, but other causes or infections should still be considered. Follow-up testing or treatment may still be needed.

Common Causes of False Results

False negatives can occur if the sample isn’t collected correctly or if the infection is very early or not actively growing. False positives are rare but possible if there’s contamination or cross-reactivity with similar bacteria. Discuss your results with your healthcare provider.