H. Influenza Viral Load Quantitative Test
Short Name: H. Influenza Viral Load
Also known as: H. influenzae PCR, Haemophilus influenzae viral load, H. flu quantitative PCR
H. Influenza Viral Load Quantitative Test test available at DNA Labs India for ₹8,160. Uses Real Time PCR on CSF, Bronchial Swabs, Bronchial Lavage samples. Results in Reports are delivered within 3 working days. Email reports are sent within 36 hours after the test is completed, and phone support is available 24 hours.. 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
The purpose of the H. Influenza Viral Load Quantitative Test is to detect and quantify the presence of Haemophilus influenzae DNA in clinical samples. It is used for: 1) Confirming active infection when culture is negative or inconclusive, 2) Assessing the severity of infection by measuring bacterial load, 3) Monitoring response to antibiotic therapy, 4) Detecting early relapse or treatment failure, 5) Guiding duration of therapy in invasive infections like meningitis or pneumonia.
- Test Code
- 6150
- CPT Code
- 87581
- ICD Code
- B96.3
- Price
- ₹8,160
- Sample Type
- CSF, Bronchial Swabs, Bronchial Lavage
- Result Time
- Reports are delivered within 3 working days. Email reports are sent within 36 hours after the test is completed, and phone support is available 24 hours.
- Fasting Required
- No
- Method
- Real Time PCR
Sample Collection
No special preparation is required. However, inform your doctor about any recent antibiotic use. A signed consent document is mandatory.
Method: Healthcare professional
Laboratory Analysis
Sample collection (CSF, bronchial swab, or lavage) is performed by a trained healthcare professional under sterile conditions. You may experience mild discomfort depending on the sample type.
Report Delivery
No specific precautions are needed. You can resume normal activities immediately. Results will be available within 3 working days.
Timeline: Reports are delivered within 3 working days. Email reports are sent within 36 hours after the test is completed, and phone support is available 24 hours.
Patient Instructions
About This Test
Who Should Get This Test
The purpose of the H. Influenza Viral Load Quantitative Test is to detect and quantify the presence of Haemophilus influenzae DNA in clinical samples. It is used for: 1) Confirming active infection when culture is negative or inconclusive, 2) Assessing the severity of infection by measuring bacterial load, 3) Monitoring response to antibiotic therapy, 4) Detecting early relapse or treatment failure, 5) Guiding duration of therapy in invasive infections like meningitis or pneumonia.
How to Prepare
- CSF: Collected via lumbar puncture by a physician
- Bronchial swab: Inserted through the nose or mouth to collect secretions
- Bronchial lavage: Performed during bronchoscopy under local anesthesia
Doctor's Notes
Reviewed by Dr Kothari Ramesh Shantilal — MBBS, MD (Microbiology) · Reg. No. 27670
"Quantitative H. influenzae PCR is essential for monitoring bacterial load in invasive infections, guiding therapy duration, and detecting early treatment failure."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Insufficient sample volume
- Sample leaking or not in sterile container
- Improper labeling
- Delayed transport without proper temperature control
Understanding Your Results
No H. influenzae DNA detected
Active infection unlikely; consider other etiologies
H. influenzae DNA detected at low level
Possible colonization or early infection; correlate clinically
H. influenzae DNA detected at high level
Active infection likely; initiate or adjust antibiotic therapy
Consult your physician if you experience symptoms such as high fever, severe headache, stiff neck, difficulty breathing, or persistent cough, especially if you are immunocompromised or have been in contact with someone with H. influenzae infection. Early diagnosis and treatment are crucial to prevent complications.
Limitations
- ⚠Test cannot differentiate between active infection and colonization
- ⚠Quantification may not correlate with disease severity in all cases
- ⚠Negative result does not completely rule out infection if sample quality is poor
- ⚠Requires specialized equipment and trained personnel
Risks & Considerations
- ●Lumbar puncture (for CSF) may cause headache, infection, or bleeding
- ●Bronchoscopy (for lavage) may cause sore throat, cough, or minor bleeding
- ●Swab collection may cause mild discomfort or gagging
Interfering Factors
- ●Recent antibiotic therapy may reduce bacterial load, leading to false negatives
- ●Contamination during sample collection can cause false positives
- ●Improper storage or transport may degrade DNA, affecting results
- ●Presence of PCR inhibitors in the sample (e.g., blood, mucus) can interfere with amplification
Compare With Similar Tests
| Test | H. Influenza Viral Load Quantitative Test | Culture | Antigen Detection | PCR (Qualitative) | Quantitative PCR (This Test) |
|---|---|---|---|---|---|
| Comparison | H. Influenza Viral Load Quantitative Test |
Frequently Asked Questions
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