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Hepatitis C Virus RNA, Serum/Plasma, Qualitative Probe-Based Amplification (Real-Time)

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

This test checks for the presence of Hepatitis C virus RNA in your blood to determine if you have an active infection with the hepatitis C virus.

Quick summary

["Helps diagnose and monitor hepatitis C virus infection quickly and accurately."]

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

Key facts at a glance

LOINC
42003-4
Short code
HCV RNA SerPl Probe+sig amp-Log#
Synonyms
HCV RNA SerPl Probe+sig amp-Log#
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-sig
CPT
82784
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What This Test Measures

The test detects genetic material (RNA) from the Hepatitis C virus in your blood. If the virus is present, the test will show a positive result, indicating an active infection. This method uses specialized probes and amplification techniques to identify even small amounts of the virus.

Why It’s Done

Your healthcare provider may order this test if you have risk factors for hepatitis C (e.g., exposure to contaminated blood, long-term IV drug use, or liver issues) or if you’re being evaluated for chronic hepatitis C. It’s also used to confirm infection after initial screening tests.

How It Works

A small blood sample is taken, and the serum or plasma is analyzed using a probe-based amplification technique. This method detects the virus’s RNA, which is unique to Hepatitis C, and confirms whether the virus is replicating in your body.

Preparation

No special preparation is needed, but avoid heavy meals or alcohol before the blood draw. Follow any specific instructions your provider gives you.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test plays a critical role in diagnosing hepatitis C early, guiding treatment decisions, and monitoring response to therapy. Early detection improves treatment outcomes and reduces long-term liver damage.

Short name

HCV RNA (Qualitative)

Frequently asked questions

What does a positive result mean?
A positive result means the Hepatitis C virus RNA is present in your blood, indicating an active infection. This requires further evaluation, including treatment planning with your healthcare provider.
How long does it take to get results?
Results are typically available within 1–3 business days, depending on lab processing times. Your provider will discuss the results with you during your follow-up visit.
Can I drink alcohol before the test?
No, avoid alcohol for 24 hours before your blood draw, as it may affect test accuracy and your comfort during the procedure.
  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