Human Herpesvirus 7 (HHV-7) DNA in Whole Blood by Nucleic Acid Amplification (Qualitative)

Why This Test Is Done

Your healthcare provider may order this test if you have symptoms like fever, fatigue, or swollen lymph nodes, or if you have an immune system disorder that increases your risk of viral infections. It can also be used to monitor people with conditions like HIV or those undergoing treatments that weaken the immune system.

What to Expect Before the Test

No special preparation is usually needed. You may have a small needle inserted into your arm to draw a blood sample. If you’re concerned about the process, let your healthcare provider know.

What the Test Results Mean

A positive result means the virus’s genetic material was found in your blood, indicating an active infection. A negative result means the virus was not detected in this sample. Results alone don’t confirm the cause of your symptoms—your doctor will consider them alongside other factors.

Common Reasons for Testing

HHV-7 is less commonly tested than other herpesviruses like CMV or EBV, but it may be checked in people with unexplained fevers, persistent fatigue, or immune-related conditions. It’s also sometimes included in broader viral panels for certain clinical scenarios.