Phospholipase A2 Receptor (PLA2R) Antibody

Phospholipase A2 Receptor (PLA2R) Antibody Test

The Phospholipase A2 Receptor (PLA2R) Antibody Test is used to diagnose and monitor primary membranous nephropathy (pMN), a kidney disease that causes protein loss in urine (proteinuria) and can lead to chronic kidney disease (CKD).


Why is the Test Done?

Diagnose primary membranous nephropathy (pMN) – The most common cause of nephrotic syndrome in adults
Differentiate primary MN from secondary MN (caused by lupus, infections, or medications)
Monitor disease activity and treatment response
Predict the risk of disease relapse


Normal Range & Interpretation

Test Result Interpretation
Negative (<2 RU/mL) No significant antibodies detected
Borderline (2–20 RU/mL) Possible early or mild disease
Positive (>20 RU/mL) Suggests active primary membranous nephropathy

📌 Higher PLA2R antibody levels correlate with more severe disease and higher proteinuria.


Conditions Associated with Positive PLA2R Antibodies

🔹 Primary Membranous Nephropathy (pMN) – 70-80% of pMN patients test positive
🔹 Rarely seen in secondary MN – Helps distinguish between primary and secondary causes
🔹 Chronic Kidney Disease (CKD) with nephrotic syndrome – If due to pMN

📌 A negative result does NOT rule out pMN, especially in later stages where antibody levels may decline.


Symptoms of Primary Membranous Nephropathy

Signs of kidney damage and protein loss:
Severe proteinuria (foamy urine)
Swelling (edema) – Especially in legs, ankles, and around the eyes
High blood pressure (hypertension)
Increased cholesterol levels
Risk of blood clots (due to protein loss)


Next Steps After a Positive Test

🔬 Confirmatory Tests:
24-hour urine protein test – Measures protein loss
Kidney biopsy – Confirms membranous nephropathy and checks for immune deposits
Serum creatinine & GFR – Evaluates kidney function
Complement levels (C3, C4) – Helps rule out lupus-related MN

💊 Treatment Options:
Immunosuppressive Therapy – Corticosteroids, rituximab, cyclophosphamide
Supportive Care – ACE inhibitors/ARBs (to reduce protein loss), diuretics (for edema), statins (for high cholesterol)
Monitoring PLA2R Antibody Levels – A decline suggests treatment response, while persistent high levels indicate a risk of relapse

Original price was: ₹6,500.00.Current price is: ₹5,399.00.

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