Herpes Simplex Virus 1 (HSV-1) DNA in Whole Blood by Nucleic Acid Amplification Probe

Why This Test Might Be Ordered

Your healthcare provider may order this test if you have symptoms like fever, fatigue, or lesions that suggest an active HSV-1 infection, especially if other tests (like viral culture) are inconclusive. It’s also used in monitoring certain conditions like immunocompromised states or recurrent infections.

What to Expect Before the Test

No special preparation is needed. A blood sample will be drawn from a vein, typically in your arm. The process usually takes a few minutes, and you may feel slight discomfort but no lasting effects.

What the Test Results Mean

A positive result indicates the presence of HSV-1 DNA, suggesting active infection. A negative result means no detectable genetic material was found at the time of testing, but HSV-1 could still be present in other body sites or latent in your body.

Common Reasons for Testing

This test is particularly useful for diagnosing active HSV-1 infections in blood, which can occur during primary infection or reactivation. It’s also used in research or specialized clinical settings where blood-based detection is preferred.