Erythropoetin Receptor Gene Mutation Analysis Test: Booking, Price, and Results
About Erythropoetin Receptor Gene Mutation Analysis Test: Booking, Price, and Results
| Field | Value |
|---|---|
| Also Known As | EPOR Gene Sequencing, EPOR Mutation Test, Erythropoietin Receptor Gene Test, ECYT1 Gene Test, Primary Familial Polycythaemia Genetic Test |
| Sample Type | Peripheral blood (whole blood in EDTA tube) |
| Fasting Required | No |
| Report Time | 15 days |
| Recommended For | All genders and ages, particularly those with unexplained lifelong erythrocytosis, a family history of erythrocytosis, or JAK2-negative polycythaemia |
| Price | Starting at ₹8,400 |
What is an Erythropoetin Receptor Gene Mutation Analysis Test?
The Erythropoetin Receptor Gene Mutation Analysis Test is a specialist genetic test that examines the EPOR gene for inherited mutations linked to abnormally high red blood cell counts. It is also called the EPOR Mutation Test or ECYT1 Gene Test. Doctors typically order it when a patient has persistent, unexplained erythrocytosis (too many red blood cells) and routine tests have not identified the cause. A small sample of peripheral blood, collected into an EDTA tube, is used for the analysis.
What Does an Erythropoetin Receptor Gene Mutation Analysis Test Measure?
This test analyses the EPOR gene, which carries the instructions for building the erythropoietin receptor. The receptor controls how the body responds to erythropoietin, the hormone that signals red blood cell production. The following are the key aspects examined:
| Feature Evaluated | Description |
|---|---|
| EPOR Gene Structure | Detects truncating variants that disrupt the normal function of the erythropoietin receptor |
| Exon 8 Variants | Most known disease-causing EPOR mutations occur in exon 8 and are typically heterozygous (present in one copy of the gene) |
| Receptor Signalling Pathway | Assesses mutations that affect receptor signalling, including activation of the JAK2 pathway involved in red blood cell production |
The method used is Sanger Sequencing, which can detect sequence variants with greater than 99% sensitivity.
Why is an Erythropoetin Receptor Gene Mutation Analysis Test Done?
This test is ordered when a patient shows signs of hereditary erythrocytosis and common acquired causes have been ruled out. Below are the situations in which a doctor may recommend it.
Common Symptoms That May Require This Test
Several symptoms may prompt a doctor to investigate an underlying blood disorder. The following are the most common:
- Persistent headaches or dizziness
- Fatigue that does not improve with rest
- Visual disturbances or blurred vision
- Ringing in the ears (tinnitus)
- Tingling or numbness in the hands and feet (paraesthesia)
- Frequent nosebleeds
- A persistently reddish complexion
- High blood pressure (hypertension)
- Shortness of breath upon exertion (dyspnea)
Conditions This Test Can Help Detect
The EPOR Gene Sequencing test can help identify the following conditions:
- Familial erythrocytosis type 1 (ECYT1), also called primary familial polycythaemia, an inherited condition in which red blood cells are overproduced due to the receptor being abnormally sensitive to erythropoietin
- Hereditary erythrocytosis linked to EPOR gene changes, which account for approximately 15% of all hereditary erythrocytosis cases
- Erythroleukaemia, a rare blood cancer, which may also involve defects in the erythropoietin receptor
How to Prepare and What to Expect
No special preparation is required for this test. The following sections explain what you need to do before and during sample collection.
Do You Need to Fast?
No, fasting is not required. This test analyses DNA from blood cells rather than substances in the blood that are affected by food intake. You may eat and drink normally before your appointment.
Practical Tips Before Your Test
Before attending your appointment, keep the following in mind:
- Bring a detailed clinical history, including your symptoms, previous test results, and family history, as this is required for the test.
- Informed consent is required before sample collection; your doctor or the collection staff will explain this to you.
- Ensure that polycythaemia vera has been excluded before this test is performed, as it is far more common than hereditary erythrocytosis.
- Confirm with your doctor that JAK2 V617F mutation testing and serum erythropoietin levels have already been assessed, as this test is typically ordered after those results are available.
- Inform your doctor of all medications and any family history of blood disorders.
Step-by-Step Procedure
The Erythropoetin Receptor Gene Mutation Analysis Test procedure follows these steps:
- A trained phlebotomist cleans the skin on the inside of your arm and draws a small blood sample (2 ml) from a vein using a fine needle.
- The blood is collected into a lavender-top EDTA tube and stored at refrigerated temperature (2 to 8 degrees Celsius) to preserve the sample quality.
- The sample is sent to the laboratory intact in its original tube; it must not be split or transferred to another container.
- In the laboratory, DNA is extracted from the blood cells, and the EPOR gene region is amplified using polymerase chain reaction (PCR).
- The amplified DNA is then analysed using the Sanger Sequencing method, and the patient's genetic sequence is compared against a reference sequence.
- Any detected variants are classified, and a detailed report is prepared for your doctor.
Factors That Can Affect Accuracy
The following factors may influence the quality or interpretation of results:
- Poor sample handling or incorrect storage temperature during transport
- Somatic or gonadal mosaicism (mutations present in only some cells rather than all), which this test cannot detect
- Failure to exclude acquired causes of erythrocytosis before testing
- Insufficient clinical history was provided at the time of testing
Understanding Your Erythropoetin Receptor Gene Mutation Analysis Test Results
Results from this test require careful interpretation by a qualified doctor or genetic counsellor. The table below outlines the possible findings and their general meaning.
| Result | Interpretation |
|---|---|
| No pathogenic variant detected | Normal; no inherited EPOR mutation identified as a cause of erythrocytosis |
| Pathogenic or likely pathogenic variant detected | Positive; indicates a genetic basis for familial erythrocytosis type 1 (ECYT1) |
| Variant of uncertain significance (VUS) | Requires further clinical correlation and may need family testing |
These ranges are general guidelines. Your doctor will interpret your results based on your age, health history, and other factors. Always consult a qualified healthcare professional for personalised medical advice.
Results During Special Conditions
Certain situations can affect how results are interpreted.
This test cannot detect mosaicism, where mutations exist in only some cells rather than the entire body.
A negative result does not fully rule out hereditary erythrocytosis, as up to 70% of cases have no identifiable genetic cause after testing the most commonly associated genes.
How to Maintain Healthy Levels
The following general wellness tips may support overall blood health:
- Stay well hydrated throughout the day to help maintain appropriate blood thickness and circulation.
- Attend all follow-up appointments so your doctor can monitor your red blood cell counts and general health over time.
- Discuss any new or worsening symptoms with your doctor promptly, particularly headaches, visual changes, or unusual fatigue.
Lupin Diagnostics Erythropoetin Receptor Gene Mutation Analysis Test Price
The Erythropoetin Receptor Gene Mutation Analysis Test cost at Lupin Diagnostics starts at ₹8,400. This test requires a visit to a Lupin Diagnostics centre; home collection is not available for this test. The indicative city-wise prices are listed below.
| City | Approximate Price (₹) |
|---|---|
| BHOPAL | 8400 |
| CHENNAI | 8400 |
| HYDERABAD | 8400 |
| KOLKATA | 8400 |
| NAVI MUMBAI | 8400 |
| PUNE | 8400 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
The Erythropoetin Receptor Gene Mutation Analysis Test online booking process at Lupin Diagnostics is straightforward:
- Select the test on the Lupin Diagnostics website.
- Choose your city and preferred centre location.
- Visit the centre at your scheduled time for sample collection.
- Receive your report via email or WhatsApp within the stipulated turnaround time.
Frequently Asked Questions
This test identifies inherited mutations in the EPOR gene that cause the erythropoietin receptor to remain abnormally active. An overactive receptor signals the body to produce too many red blood cells, leading to a condition called familial erythrocytosis type 1. It is ordered when routine tests cannot explain persistently high red blood cell counts.
This test is recommended for individuals with lifelong, unexplained erythrocytosis, particularly when the JAK2 V617F mutation has tested negative, and serum erythropoietin levels are low or normal. Those with a family history of similar blood disorders may also benefit from testing.
Most people with this condition experience only mild symptoms such as headaches or dizziness. However, some individuals may develop more serious complications over time. Your doctor will assess your overall risk based on your test results, symptoms, and medical history.
The report is typically ready within 15 days from the date of sample collection at Lupin Diagnostics. Because the test involves detailed DNA sequencing and analysis, the turnaround is longer than routine blood tests.
Yes, familial erythrocytosis type 1 follows an autosomal dominant inheritance pattern. This means a child needs to inherit only one copy of the mutated gene from one parent for the condition to be present. Relatives of an affected individual may be advised to consider genetic testing as well.
A negative result does not completely rule out a hereditary blood disorder. A significant proportion of erythrocytosis cases remain unexplained even after EPOR gene testing. Your doctor may recommend testing for other genes associated with erythrocytosis, such as VHL, EGLN1, or EPAS1.
No fasting is needed. You can eat and drink as usual before your appointment. The test analyses DNA extracted from blood cells, not substances influenced by food intake.
Erythropoetin Receptor Gene Mutation Analysis Test: Booking, Price, and Results
