G6PD Quantitative Reflex Qualitative Test
Also known as: G6PD - Quantitative Reflex Qualitative, EDTA Blood
G6PD - Quantitative Reflex Qualitative, EDTA Blood Details in Brief
| Also Known As | G6PD Test, Glucose-6-Phosphate Dehydrogenase Quantitative and Reflex Qualitative Test |
|---|---|
| Purpose | Detects G6PD enzyme deficiency to assess risk of haemolytic anaemia and guide medication safety |
| Preparation | No special preparation required |
| Fasting | Fasting not required |
| Reporting Time | Same day |
| Cost | 1,250 |
What Is a G6PD Quantitative Reflex Qualitative Test?
The G6PD Quantitative Reflex Qualitative Test is a blood test that measures the level of the enzyme Glucose-6-Phosphate Dehydrogenase (G6PD) in your red blood cells. This enzyme helps protect red blood cells from oxidative stress.
A deficiency in G6PD can cause red blood cells to break down prematurely, leading to haemolytic anaemia. This test is essential to identify people who are at risk of haemolysis when exposed to certain medications, infections, or foods such as fava beans.
At Metropolis Healthcare, the test is conducted on EDTA blood using the kinetic method for accuracy. If the quantitative enzyme level is below 6, a reflex qualitative test is automatically performed to confirm the deficiency.
What Does the G6PD Quantitative Reflex Qualitative Test Measure?
This test measures the activity level of the G6PD enzyme and checks whether it’s adequate to protect red blood cells from damage. It helps to:
- Detect G6PD deficiency in symptomatic or at-risk individuals
- Diagnose causes of haemolytic anaemia or neonatal jaundice
- Screen newborns and high-risk populations for enzyme deficiency
- Guide doctors before prescribing certain medications (e.g., antimalarials, sulphonamides)
- Distinguish inherited G6PD deficiency from acquired haemolysis
G6PD Quantitative Reflex Qualitative Test: Who Needs It and Why It’s Done
What Symptoms May Call for a G6PD Quantitative Reflex Qualitative Test?
Doctors may recommend this test if you experience:
- Sudden fatigue, paleness, or dizziness
- Yellowing of the skin or eyes (jaundice)
- Dark-coloured urine
- Shortness of breath
- Episodes of anaemia after taking specific drugs or eating fava beans
Who Should Get a G6PD Quantitative Reflex Qualitative Test?
The test is particularly useful for:
- Newborns with jaundice or a family history of G6PD deficiency
- Individuals of African, Mediterranean, or Asian descent (where deficiency is more common)
- Patients with unexplained haemolytic anaemia
- People starting certain medications like antimalarials (primaquine, chloroquine) or sulphonamides
- Pregnant women or individuals with recurrent anaemic episodes
Why Is a G6PD Quantitative Reflex Qualitative Test Done?
This test identifies whether your red blood cells lack the G6PD enzyme, which helps prevent haemolysis. It ensures the safe use of medications, helps in early diagnosis of inherited enzyme deficiency, and prevents oxidative stress-related anaemic crises.
Importance of a G6PD Quantitative Reflex Qualitative Test
The G6PD test is critical for maintaining blood health and preventing medication-induced complications. It helps your doctor:
- Detect enzyme deficiency before prescribing high-risk medications
- Diagnose causes of haemolysis and jaundice
- Protect against avoidable haemolytic crises
- Support neonatal screening and early management
- Guide lifestyle and dietary precautions for those diagnosed with G6PD deficiency
G6PD Quantitative Reflex Qualitative Test Booking & Reports – Metropolis Healthcare
How to Book the G6PD Quantitative Reflex Qualitative Test and Get Your Reports
- Simple Online Booking
Book your test easily through the Metropolis Healthcare website or app. Choose a convenient time for home collection or visit your nearest Metropolis Lab. - Safe Home Sample Collection
Our skilled phlebotomists collect your blood sample safely and hygienically from your home. - Sample Tracking Updates
Track your sample status in real-time through the Metropolis Healthcare platform. - Accurate Laboratory Testing
Your sample is tested at NABL & CAP accredited Metropolis Labs using the kinetic method for reliable results. - Quick & Easy Reports
Receive your reports promptly via email, WhatsApp, or by downloading them from the Metropolis Healthcare website or app.
Is Home Sample Collection for G6PD Quantitative Reflex Qualitative Test Available Near You?
Yes. Metropolis Healthcare offers doorstep blood collection services for this test. Our trained phlebotomists follow all safety measures to ensure a seamless and comfortable experience.
How Long Does It Take to Get a G6PD Quantitative Reflex Qualitative Test Report?
Reports are usually available on the same day once your sample reaches the Metropolis Lab.
Note: Reporting time may vary depending on your location.
Where Can I See or Get G6PD Quantitative Reflex Qualitative Test Results?
You can view or download your reports from the Metropolis Healthcare website or app. Reports are also shared via email or WhatsApp, and you can collect a printed copy from your nearest Metropolis Lab.
Interpreting G6PD Quantitative Reflex Qualitative Test Results
What Your G6PD Quantitative Reflex Qualitative Test Results May Indicate
|
Parameter |
Normal Range |
Abnormal Findings |
Interpretation |
|
G6PD Activity |
4.62–13.5 U/g Hb |
Below 4.6 U/g Hb |
Indicates G6PD deficiency, which may cause haemolytic anaemia under stress or medication exposure |
|
Haemoglobin |
12–16 g/dL |
Low Hb levels |
Suggests anaemia possibly due to red blood cell breakdown |
|
G6PD Qualitative |
Not Deficient |
Deficient |
Confirms G6PD enzyme deficiency |
Understanding Abnormal G6PD Quantitative Reflex Qualitative Test Results by Parameter
|
Result |
Possible Indication |
|
Low G6PD Activity |
Suggests inherited G6PD deficiency; may lead to haemolytic crises when exposed to certain drugs, infections, or foods. |
|
Borderline/Intermediate G6PD Levels |
Reflex qualitative test confirms whether the enzyme activity is sufficient or deficient. |
|
Normal G6PD Activity |
Indicates healthy enzyme levels and low risk of oxidative haemolysis. |
How Should You Prepare for a G6PD Quantitative Reflex Qualitative Test?
You don’t need any special preparation before the test:
- Fasting not required: You can eat and drink normally.
- Medication review: Inform your doctor about all medications you’re taking, especially antibiotics, antimalarials, or painkillers.
- Avoid triggers: If you’ve recently eaten fava beans or had a haemolytic episode, inform your doctor as it may affect results.
- Hydration: Drink water as usual before your test.
How Is a G6PD Quantitative Reflex Qualitative Test Done? (Step-by-Step Procedure)
The G6PD test involves a standard blood collection process:
- Preparation: A tourniquet is tied around your arm to make veins visible.
- Cleaning: The puncture site is cleaned with antiseptic.
- Sample Collection: A sterile needle draws about 3 ml of EDTA blood into a vacutainer.
- Completion: The needle is removed, and a bandage is applied.
- Processing: The sample is analysed using the kinetic method to measure enzyme activity. If results are low, a reflex qualitative test is performed for confirmation.
Conditions That May Affect G6PD Quantitative Reflex Qualitative Test Accuracy
Some factors can temporarily affect your G6PD test results:
- Recent blood transfusion may show falsely normal enzyme levels.
- Testing during an acute haemolytic episode may give inaccurate readings.
- Reticulocytosis (increase in young red blood cells) can mask enzyme deficiency.
- Certain medications may alter enzyme activity — always inform your doctor.
Diseases That a G6PD Quantitative Reflex Qualitative Test Can Help Detect
- G6PD Deficiency – inherited enzyme deficiency causing haemolysis
- Haemolytic Anaemia – premature breakdown of red blood cells
- Neonatal Jaundice – high bilirubin levels due to red cell destruction
- Drug-Induced Haemolysis – triggered by antimalarials, sulphonamides, or analgesics
- Favism – haemolysis after eating fava beans
G6PD Quantitative Reflex Qualitative Test Price in Different Cities
The cost of a G6PD Quantitative Reflex Qualitative Test may vary depending on your location. Here's a table showing the approximate price range for the G6PD Quantitative Reflex Qualitative Test at Metropolis Healthcare in major Indian cities:
|
City |
Approximate Cost (INR) |
|
₹ 600 to ₹ 900 |
|
|
₹ 600 to ₹ 900 |
|
|
₹ 600 to ₹ 900 |
|
|
₹ 600 to ₹ 900 |
The G6PD Quantitative Reflex Qualitative Test cost may vary depending on the city and the specific tests included in the panel. However, Metropolis Healthcare offers competitive G6PD Quantitative Reflex Qualitative Test prices across major cities in India.
References
- Beutler, E. (1994). G6PD deficiency. Blood, 84(11), 3613–3636. PMID: 7949118
- Cappellini, M.D., Fiorelli, G. (2008). Glucose-6-phosphate dehydrogenase deficiency. Lancet, 371(9606), 64–74. PMID: 18177777
- Luzzatto, L., Nannelli, C., Notaro, R. (2016). Glucose-6-phosphate dehydrogenase deficiency. Hemato, 101(6), 580–589. PMID: 26912492
- Frank, J.E. (2005). Diagnosis and management of G6PD deficiency. American Family Physician, 72(7), 1277–1282. PMID: 16225030
G6PD - Quantitative Reflex Qualitative, EDTA Blood Price
Metropolis Healthcare is a leading diagnostics centre and pathology lab in India equipped with the latest state-of-the-art technologies that provides the G6PD - Quantitative Reflex Qualitative, EDTA Blood with a clear pricing structure.
The G6PD - Quantitative Reflex Qualitative, EDTA Blood Price in Thane is ₹ 1,250 .
We are committed to deliver accurate and quality results from the best labs in India with complete transparency regarding test cost and turnaround time. No matter where you are, we strive to offer patients high-quality service that is affordable and accessible.
Frequently Asked Questions
It measures the G6PD enzyme level in your blood to detect deficiency that can cause haemolytic anaemia.
It confirms deficiency if the quantitative enzyme level is borderline or low.
No, fasting is not required.
It’s usually inherited and can cause red cell breakdown after exposure to certain drugs, infections, or foods.
No, it is a genetic condition, but symptoms can be prevented by avoiding known triggers.
Certain antimalarials like primaquine can cause haemolysis in G6PD-deficient individuals.
Yes, it’s one of the most common enzyme deficiencies worldwide, especially in people of African and Asian descent.
Yes, the test is often part of newborn screening to prevent complications from jaundice.
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