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Hepatitis E Virus Genotype Detection by Nucleic Acid Probe (Blood)

Published: August 9, 2026Updated: August 16, 2026

This test checks for the presence of Hepatitis E Virus (HEV) genetic material in your blood to determine if you may have been exposed to the virus.

Quick summary

["HEV exposure can sometimes be asymptomatic but may lead to liver infection requiring medical evaluation."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
60430-6
Short code
HEV Gentyp Bld NAA+probe
Synonyms
HEV Gentyp Bld NAA+probe
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What This Test Measures

The test detects HEV genetic material using a specialized probe. This helps identify if the virus is present in your bloodstream, which can indicate potential infection or exposure.

How the Test Works

A small blood sample is taken to analyze HEV DNA or RNA. The probe binds to specific genetic sequences of the virus if present, confirming exposure or infection status.

Why It Matters

HEV is a virus that can cause liver inflammation. While many infections are mild, some people may experience severe illness, especially those with weakened immune systems or pre-existing liver conditions.

When You Might Need This Test

Your healthcare provider may recommend this test if you have symptoms like fever, abdominal pain, or jaundice, or if you’ve traveled to areas with known HEV outbreaks or have had contact with someone infected.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

HEV infection can range from mild flu-like symptoms to severe liver damage, particularly in pregnant women or those with chronic liver disease. Early detection through this test helps guide treatment and monitoring.

Short name

HEV Genotype Test

Frequently asked questions

What Are the Symptoms of HEV?
Symptoms may include fatigue, nausea, abdominal pain, or jaundice (yellowing of skin/eyes). Some people, especially adults, may not have any symptoms at all.
How Is This Test Different from Other Hepatitis Tests?
Unlike standard hepatitis tests (e.g., for Hepatitis A, B, or C), this test specifically looks for HEV genetic material, which can help differentiate HEV infection from others.
Can This Test Detect Past or Active HEV Infection?
Yes, this test detects current HEV genetic material, which can indicate active infection. However, if you’ve recovered, your body may clear the virus, so results may not persist indefinitely.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy