Myeloproliferative Leukaemia Mutation Test
About Myeloproliferative Leukaemia Mutation Test
| Field | Value |
|---|---|
| Also Known As | MPL Mutation Test, MPL Gene Mutation Analysis, MPL W515/S505 Mutation Test, Thrombopoietin Receptor Gene Mutation Test |
| Sample Type | Peripheral blood and bone marrow |
| Fasting Required | No fasting required |
| Report Time | 12 days |
| Recommended For | Adults of both genders, particularly those over 45 years; individuals with suspected myeloproliferative neoplasms who test negative for the JAK2 mutation |
| Price | Starting at ₹7,200 |
What Is a Myeloproliferative Leukaemia Mutation Test?
The myeloproliferative leukaemia mutation test is a specialised molecular test that detects specific mutations in the MPL gene. The MPL gene produces a protein called the thrombopoietin receptor, which helps regulate the growth of blood-forming cells in the bone marrow. This test is typically ordered for adults suspected of having certain blood disorders, particularly when other common genetic markers are not found. This test is also known as the MPL mutation test, MPL gene mutation analysis, MPL W515/S505 mutation test, or thrombopoietin receptor gene mutation test. Samples collected include peripheral blood (from a vein) and bone marrow.
What Does a Myeloproliferative Leukaemia Mutation Test Measure?
This test examines the MPL gene for two key types of mutations. Both affect how blood cells are produced and regulated. The following mutations are analysed during this test:
| Mutation | What It Involves |
|---|---|
| W515L | An amino acid change at position 515 that switches the thrombopoietin receptor into a permanently active state, causing overproduction of platelet-producing cells and raising the risk of blood clots |
| S505N | A mutation associated with hereditary thrombocytosis, an inherited condition that causes abnormally high platelet counts |
Why Is a Myeloproliferative Leukaemia Mutation Test Done?
A doctor may request a myeloproliferative leukaemia mutation test when a patient shows signs of an abnormal blood cell condition. The test helps pinpoint the underlying genetic cause so that an accurate diagnosis can be made.
Common Symptoms That May Require This Test
Several symptoms may prompt a doctor to order this test. These include:
- Persistent fatigue and general weakness
- Unexplained headaches or dizziness
- Shortness of breath with routine activity
- Easy bruising or unusual bleeding
- Enlarged spleen, causing abdominal fullness or discomfort
- Night sweats or low-grade fever
- Unexplained weight loss or feeling full very quickly after eating
Conditions This Test Can Help Detect
This test can support the diagnosis of several blood disorders, including:
- Essential thrombocythaemia (ET), a condition in which the bone marrow produces far too many platelets, making the blood prone to clotting
- Primary myelofibrosis (PMF), a disorder in which scar tissue builds up in the bone marrow, disrupting normal blood cell production
- Hereditary thrombocytosis, an inherited condition causing persistently elevated platelet counts, linked to the S505N mutation
How to Prepare and What to Expect
No special preparation is needed for this test. Here is what to keep in mind before your appointment.
Do You Need to Fast?
No fasting is required for this test. You may eat and drink normally before your sample is collected. If your doctor has ordered additional tests along with this one, please confirm whether any of those tests require fasting beforehand.
Practical Tips Before Your Test
A few simple steps will help ensure your visit goes smoothly:
- Bring a detailed clinical history, including your symptoms, previous test results, and family history, as this is required for the test
- Inform your doctor about all medications you are currently taking
- Wear clothing with sleeves that can be easily rolled up for the blood draw
- Stay well hydrated before your appointment
Step-by-Step Procedure
This test requires two separate samples, a peripheral blood sample and a bone marrow sample. Here is what to expect during the myeloproliferative leukaemia mutation test procedure:
Peripheral Blood Collection:
- A healthcare professional cleans the skin on your inner arm with an antiseptic swab.
- A needle is inserted into a vein, and approximately 3 ml of blood is drawn into a lavender-top EDTA tube.
- The needle is removed, and light pressure is applied to the puncture site.
- A small bandage is placed over the site.
Bone Marrow Collection:
- A doctor selects a suitable site, usually the back of the hip bone (posterior iliac crest), and applies local anaesthesia to numb the area.
- A specialised needle is carefully inserted into the bone marrow space, and approximately 3 ml of marrow is aspirated into a sodium heparin (green-top) tube.
- The needle is withdrawn, and the site is covered with a sterile dressing.
- Both samples are stored at 2 to 8°C and dispatched to the laboratory for Sanger sequencing analysis.
Factors That Can Affect Accuracy
The following factors may affect the reliability of the test result:
- Improper sample collection, handling, or storage
- Haemolysis (breakdown of red blood cells in the sample)
- Delay in transporting the sample to the laboratory beyond the acceptable window
- Very low levels of abnormal cells (low tumour burden) that fall below the detection threshold of the method used
Understanding Your Myeloproliferative Leukaemia Mutation Test Results
Results from this test are reported qualitatively, meaning they indicate whether a mutation was detected or not, rather than a numerical value. A doctor must review your result alongside your symptoms, clinical history, and other test findings. The following table outlines the interpretation of test results:
| Result | Interpretation |
|---|---|
| Mutation Not Detected | No MPL mutation found; does not entirely rule out other blood disorders |
| Mutation Detected (W515L, W515K, or S505N) | MPL mutation present; suggests a myeloproliferative neoplasm may be present |
Disclaimer: 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
The presence or absence of an MPL mutation is determined by genetics and cannot be influenced by diet, exercise, or lifestyle changes. The test has a detection sensitivity of approximately 10%, meaning very small mutant cell populations may not be identified.
How to Maintain Healthy Levels
Because this test detects a genetic mutation rather than a measurable level, the following tips focus on general wellbeing:
- Attend regular follow-up appointments with your haematologist to monitor your condition
- Report any new or worsening symptoms, such as fatigue, abdominal discomfort, or unusual bleeding, to your doctor promptly
- Follow your doctor's guidance regarding any recommended lifestyle adjustments
Lupin Diagnostics Myeloproliferative Leukaemia Mutation Test Price
The myeloproliferative leukaemia mutation test cost at Lupin Diagnostics starts at ₹7,200. This test requires a visit to a hospital for a bone marrow sample; home collection is not available for this test. The table below shows prices across major Indian cities:
| City | Approximate Price (₹) |
|---|---|
| Mumbai | 7200 |
| Pune | 7200 |
| Bangalore | 7200 |
| Chennai | 7200 |
Disclaimer: Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
Follow these steps for myeloproliferative leukaemia mutation test online booking:
- 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
The myeloproliferative leukaemia mutation test is used to identify mutations in the MPL gene in patients with suspected blood cell disorders, particularly primary myelofibrosis or essential thrombocythaemia. It is especially useful when the more common JAK2 mutation has already been ruled out. The result helps doctors confirm a diagnosis and plan appropriate care.
This test analyses both peripheral blood and bone marrow to give a thorough picture of the genetic changes occurring in your blood-forming system. Bone marrow is where blood cells are produced, so examining it alongside the circulating blood provides more reliable information. Your doctor will guide you through what to expect during both sample collections.
No fasting is required. You can eat and drink normally before your appointment. However, always follow specific instructions provided by your doctor.
At Lupin Diagnsotics, the report is typically delivered within 12 days of sample collection. The test results are delivered directly via email or WhatsApp.
A positive result indicates that a mutation in the MPL gene, such as W515L or S505N, was found. This suggests the presence of a myeloproliferative neoplasm. Your doctor will interpret this finding alongside your symptoms and other clinical information before making a diagnosis.
A negative result means no MPL mutation was detected, but it does not rule out all blood disorders. Other genetic changes, such as JAK2 or CALR mutations, may still be present. Your doctor may suggest additional tests if your symptoms persist.
The myeloproliferative leukaemia mutation test is primarily used for the diagnosis and classification of blood disorders rather than routine monitoring. In some cases, it may be repeated if symptoms change significantly or if further genetic evaluation is needed. Your haematologist will advise whether repeat testing is appropriate for your situation.
Myeloproliferative Leukaemia Mutation Test
