Phospholipase A2 Receptor Antibody (PLA2R) Quantitative Test: Booking, Price, and Results
About Phospholipase A2 Receptor Antibody (PLA2R) Quantitative Test
| Field | Value |
|---|---|
| Also Known As | Anti-PLA2R antibody, Anti-PLA2R Ab, PLA2R Ab, Phospholipase A2 Receptor Antibody IgG, Anti-PLA2R IgG |
| Sample Type | Venous blood (serum) |
| Fasting Required | No fasting required |
| Report Time | 5 to 7 days |
| Recommended For | Adults with suspected primary membranous nephropathy; both genders |
| Price | Starting at ₹7,200 |
What Is a Phospholipase A2 Receptor Antibody (PLA2R) Quantitative Test?
The PLA2R quantitative test measures specific immune proteins called anti-PLA2R antibodies in your blood. These antibodies are closely linked to a kidney condition called primary membranous nephropathy, in which the kidney's filtering units become damaged. A doctor typically orders this test when a patient shows signs of protein leakage into the urine or other symptoms pointing to kidney disease. The test is also known as the Anti-PLA2R Ab or PLA2R Ab test, and it uses a blood sample drawn from a vein.
What Does a Phospholipase A2 Receptor Antibody (PLA2R) Quantitative Test Measure?
This test detects and quantifies a single but clinically significant marker in the blood. The result is expressed as a number in RU/mL (relative units per millilitre), which allows doctors to track changes over time.
| Parameter | What It Tells Us |
|---|---|
| Anti-PLA2R Antibodies (IgG) | Measures immune proteins that attack a receptor protein on kidney cells called podocytes; elevated levels are associated with primary membranous nephropathy |
The quantitative nature of the Anti-PLA2R test is what makes it especially useful. Rather than a simple yes-or-no result, the measured level helps doctors assess disease severity and monitor how well treatment is working.
Why is a Phospholipase A2 Receptor Antibody (PLA2R) Quantitative Test Done?
This test is ordered when a doctor suspects an autoimmune kidney condition or wants to track an already-diagnosed one. Below are the main reasons it may be recommended.
Common Symptoms That May Require This Test
Doctors may order this test when a patient presents with the following symptoms:
- Foamy or frothy-looking urine, which may indicate protein leakage from the kidneys
- Swelling in the legs, ankles, or feet (oedema) due to fluid accumulation
- Unexplained weight gain caused by fluid retention
- Persistent fatigue or low energy levels
- High blood pressure without an obvious cause
- Raised cholesterol levels detected on a routine blood test
- Noticeable changes in urine volume
- Decreased kidney function or abnormal kidney test results
- No clear cause for nephrotic syndrome
Conditions This Test Can Help Detect
This test can provide useful diagnostic information for several kidney-related conditions:
- Primary membranous nephropathy (PMN), the most common autoimmune kidney disease in adults
- Primary membranous glomerulonephritis, where antibodies damage the kidney's filtering structures
- Assessment of disease activity in patients already diagnosed with membranous nephropathy
- Evaluation of recurrence risk in patients who have received a kidney transplant
Phospholipase A2 Receptor Antibody (PLA2R) Quantitative Test for Chronic Disease Monitoring
For patients already diagnosed with Anti-PLA2R-positive membranous nephropathy, repeat testing is a standard part of ongoing care. Antibody levels measured at baseline and at six months have been shown to predict how well a patient is responding to immunosuppressive therapy. Testing is typically repeated at three, six, and twelve months during treatment to track disease activity and guide clinical decisions.
How to Prepare and What to Expect
No special preparation is needed for this test, but a few simple steps will help ensure your visit goes smoothly.
Do You Need to Fast?
No, fasting is not required before the PLA2R quantitative test. You can eat and drink as normal before your appointment.
Practical Tips Before Your Test
Keep the following points in mind before going for sample collection:
- Drink adequate water beforehand to stay well hydrated
- Inform your doctor and the collection team about all medications you are currently taking, particularly immunosuppressive drugs
- If you have recently had a kidney biopsy, let the laboratory know
- Wear a short-sleeved or loose-sleeved top for easy access to your arm
Step-by-Step Procedure
- A trained phlebotomist (blood collection specialist) will ask you to sit comfortably and extend your arm.
- A tourniquet is placed on your upper arm, and you may be asked to make a fist to make the vein more visible.
- The skin over the vein is cleaned with an antiseptic swab.
- A small needle is inserted into the vein to draw the required amount of blood into a serum separator tube.
- The needle is removed, and a small cotton swab or bandage is placed over the site.
- The blood sample is processed to separate the serum, which is then sent to the laboratory for ELISA (enzyme-linked immunosorbent assay) analysis.
Factors That Can Affect Accuracy
- Haemolysed samples (where red blood cells have broken down in the sample)
- Samples with very high fat content (hyperlipidaemic samples)
- Jaundice-related changes in the sample (icteric samples)
- Contaminated or improperly stored samples
- Timing of the test relative to immunosuppressive treatment
- Dehydration at the time of collection
Understanding Your Phospholipase A2 Receptor Antibody (PLA2R) Quantitative Test Results
Your results will show a numerical value in RU/mL, which your doctor will interpret alongside your symptoms, kidney function tests, and medical history. The table below shows general reference ranges used in ELISA-based testing.
| Result Category | Range (RU/mL) |
|---|---|
| Negative | Less than 2 |
| Borderline | 2 to less than 20 |
| Positive | 20 or above |
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 factors can influence how results are interpreted:
- Low albumin levels alongside raised cholesterol and LDL-C have been identified as risk factors for a positive Anti-PLA2R result.
- Additionally, environmental factors such as air pollution, smoking, and past infections may play a role in the development of PLA2R-associated kidney disease.
- Importantly, approximately 20 to 30% of patients with primary membranous nephropathy may test negative despite having the condition, so a negative result does not completely rule out the diagnosis.
How to Maintain Healthy Levels
These general tips support kidney health and complement medical treatment:
- Attend all follow-up appointments with your nephrologist (kidney specialist) so that antibody levels can be tracked over time.
- Follow a kidney-friendly diet with reduced salt and moderate protein intake, as recommended by your doctor.
- Keep blood pressure and blood sugar within healthy ranges, as both can affect kidney function.
Lupin Diagnostics Phospholipase A2 Receptor Antibody (PLA2R) Quantitative Test Price and Home Collection
The PLA2R quantitative test is available at Lupin Diagnostics starting at ₹7,200, with home sample collection offered across major cities in India.
| City | Approximate Price (₹) |
|---|---|
| Guwahati | ₹7,200 |
| Mumbai | ₹7,200 |
| Bangalore | ₹7,200 |
| Chennai | ₹7,200 |
| Hyderabad | ₹7,200 |
| Kolkata | ₹7,200 |
| Pune | ₹7,200 |
| Indore | ₹7,200 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
- Select the test on the Lupin Diagnostics website.
- Choose your city and preferred time slot.
- Opt for home sample collection by a certified phlebotomist, or visit your nearest Lupin Diagnostics centre.
- Receive your report via email or WhatsApp within the stipulated turnaround time.
Home Collection
Lupin Diagnostics offers home sample collection for the Anti-PLA2R test across multiple cities in India. All samples are processed in NABL-accredited laboratories, ensuring accuracy and consistency. Your digital report is shared via email or WhatsApp once ready.
Frequently Asked Questions
This test checks for the presence and level of Anti-PLA2R antibodies in the blood. These antibodies are highly specific to a condition called primary membranous nephropathy, an autoimmune kidney disease. The test helps doctors confirm a diagnosis, assess disease severity, and monitor treatment response.
Around 70% to 80% of patients with primary membranous nephropathy test positive for PLA2R Ab. A positive result is considered highly specific for this condition. However, a negative result does not completely exclude the diagnosis, as some patients with the disease do not produce these antibodies.
In some low-risk cases where kidney function is preserved, and Anti-PLA2R antibodies are clearly positive, recent KDIGO guidelines suggest a kidney biopsy may not always be necessary. However, your nephrologist will assess your individual situation and decide whether a biopsy is still needed.
When a patient is undergoing treatment, Anti-PLA2R levels are tracked over time to see whether the therapy is working. A rising titre may indicate worsening disease, while a falling or undetectable level often signals improvement or remission. Repeat testing is typically done at three, six, and twelve months during treatment.
A borderline result, where the PLA2R Ab level falls between 14 and 20 RU/mL, is not a clear positive or negative finding. Your doctor may recommend repeating the test after a short interval or ordering additional tests, such as an immunofluorescence assay, to clarify the finding.
No fasting is needed before the Anti-PLA2R blood test. You can have your normal meals and drinks on the day of your appointment without any concern.
Most laboratories return results within 5 to 7 days of receiving the sample. Some specialised labs may take the full 7 days, as the ELISA analysis involved is more complex than a routine blood test. Lupin Diagnostics will inform you of the expected turnaround time at the point of booking.
Phospholipase A2 Receptor Antibody (PLA2R) Quantitative Test: Booking, Price, and Results
