Human Herpes Virus 7 (HHV7) Qualitative PCR Test
Short Name: HHV7 Qualitative PCR Test
Also known as: HHV-7 PCR Test, Roseola Virus Test
Human Herpes Virus 7 (HHV7) Qualitative PCR Test test available at DNA Labs India for ₹5,000. Uses Real Time PCR on Whole blood or Cerebrospinal fluid (CSF) samples. Results in Results are typically available within 2-3 days after sample receipt, with reports dispatched on Wednesdays and Saturdays for samples received by Monday and Thursday, respectively.. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr Kothari Ramesh Shantilal
Consultant Microbiologist · Reg: 27670
Last reviewed: September 7, 2026
Overview
To diagnose Human Herpes Virus 7 infection using molecular detection methods, aiding in the identification of active infections and guiding clinical management.
- Test Code
- 838
- Price
- ₹5,000
- Sample Type
- Whole blood or Cerebrospinal fluid (CSF)
- Result Time
- Results are typically available within 2-3 days after sample receipt, with reports dispatched on Wednesdays and Saturdays for samples received by Monday and Thursday, respectively.
- Fasting Required
- No
- Method
- Real Time PCR
Sample Collection
No special preparation required. Inform your healthcare provider about any medications or health conditions.
Laboratory Analysis
A healthcare professional will collect a blood sample via venipuncture or CSF via lumbar puncture, following standard aseptic procedures.
Report Delivery
Apply pressure to the puncture site to prevent bleeding. Monitor for any signs of infection or discomfort. For CSF collection, rest and hydration are advised.
Timeline: Results are typically available within 2-3 days after sample receipt, with reports dispatched on Wednesdays and Saturdays for samples received by Monday and Thursday, respectively.
Patient Instructions
About This Test
Who Should Get This Test
To diagnose Human Herpes Virus 7 infection using molecular detection methods, aiding in the identification of active infections and guiding clinical management.
How to Prepare
- Collect 3 ml whole blood in a Lavender Top (EDTA) tube or 3 ml CSF in a sterile screw capped container.
- Ship samples refrigerated, do not freeze.
- Label samples correctly with patient details and test information.
Doctor's Notes
Reviewed by Dr Kothari Ramesh Shantilal — MBBS, MD (Microbiology) · Reg. No. 27670
"HHV7 is a common herpesvirus often causing asymptomatic infections but can lead to Roseola in children. PCR testing is the gold standard for accurate diagnosis, especially in symptomatic cases or complications like encephalitis."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Hemolyzed or clotted blood samples
- Incorrect container type
- Insufficient sample volume
- Contaminated or improperly labeled samples
- Thawed or improperly stored specimens
Understanding Your Results
Detected
Active HHV7 infection is present. Correlate with clinical symptoms and history. Consider further evaluation if complications are suspected.
Not Detected
HHV7 DNA was not detected. Infection is unlikely, but a negative result does not rule out infection if clinical suspicion remains high. Repeat testing may be advised.
If you or your child experience high fever, rash, seizures, irritability, loss of appetite, or symptoms suggestive of HHV7 infection such as acute febrile respiratory disease or neurological issues, consult a healthcare provider immediately for diagnosis and potential treatment.
Limitations
- ⚠Qualitative test does not quantify viral load
- ⚠False negatives possible in early infection or low viral shedding
- ⚠May not distinguish between active and latent infection
- ⚠Not suitable for monitoring treatment response
Risks & Considerations
- ●Minimal risks from blood draw: bruising, soreness, or rare infection at puncture site.
- ●Lumbar puncture risks: headache, back pain, or infection, though these are uncommon with proper technique.
Interfering Factors
- ●Sample contamination
- ●Improper sample storage or transport
- ●Recent antiviral therapy
- ●Inhibitors in CSF or blood samples
Compare With Similar Tests
| Test | Human Herpes Virus 7 (HHV7) Qualitative PCR Test | HHV6 Qualitative PCR Test | CMV Qualitative PCR Test | EBV Qualitative PCR Test | General Viral Panel PCR |
|---|---|---|---|---|---|
| Comparison | Human Herpes Virus 7 (HHV7) Qualitative PCR Test | Similar to HHV7, HHV6 causes infantile roseola and is another herpesvirus. PCR testing is also used for diagnosis. | Detects Cytomegalovirus, a herpesvirus that can cause mononucleosis and other infections, especially in immunocompromised individuals. | Detects Epstein-Barr Virus, which causes infectious mononucleosis and is associated with lymphomas. | A broad test that screens for multiple viruses simultaneously, useful for differential diagnosis in febrile illnesses. |
Frequently Asked Questions
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