Influenza Nucleic Acid Detection by Qualitative Probe (Serum/Plasma)

How the Test Works

The test uses a specialized probe to detect the genetic material (nucleic acid) of the influenza virus. This is done through a molecular method that amplifies and identifies the virus’s unique genetic sequence, even if it’s present in small amounts. Results are qualitative, meaning they only indicate whether the virus is present or not.

What to Expect Before the Test

No special preparation is needed for this test. You may have blood drawn from a vein in your arm, similar to other blood tests. If you’re taking blood thinners or have a history of bleeding disorders, let your healthcare provider know before the test.

Possible Results and Their Meaning

A positive result means the test detected genetic material from the influenza virus in your blood, suggesting you may have an active flu infection. A negative result means no genetic material was found, but this doesn’t always rule out infection if the virus is present at very low levels or if the test was taken too early.

When This Test Might Be Ordered

Your healthcare provider may order this test if you have symptoms of the flu (e.g., fever, cough, body aches) and suspect influenza, especially if you’re in a high-risk group (e.g., elderly, immunocompromised, or pregnant). It can also be used to confirm a suspected flu diagnosis in clinical settings.