Protein Electrophoresis Test: Purpose, Normal Range and Price

The Serum Protein Electrophoresis test, commonly known as SPEP, is a blood test that separates and measures the different protein fractions present in the blood using an electrical field. Proteins migrate at different speeds based on their size and electrical charge, separating into five distinct bands: albumin, alpha-1 globulins, alpha-2 globulins, beta globulins, and gamma globulins. Each band represents a group of proteins with specific physiological functions, and abnormalities in any fraction point toward specific disease processes affecting protein production, loss, or accumulation. The test is most clinically significant for its ability to detect a monoclonal protein, also called an M-protein or paraprotein, which appears as a sharp narrow spike in the gamma region. This monoclonal spike is the hallmark of plasma cell disorders including multiple myeloma, Waldenstrom's macroglobulinaemia, and monoclonal gammopathy of undetermined significance. In India, multiple myeloma is among the most common haematological malignancies in adults above 50 years and is frequently diagnosed late due to its non-specific presenting symptoms of bone pain, fatigue, and recurrent infections. Protein electrophoresis is the essential first-line investigation for detecting this abnormal protein pattern. The test involves a simple blood draw completed in under five minutes.

Doctors prescribe a Protein Electrophoresis test in the following situations: Investigating multiple myeloma in patients with unexplained bone pain, vertebral fractures, anaemia, recurrent infections, hypercalcaemia, and renal impairment where detection of a monoclonal spike on electrophoresis is the critical diagnostic finding initiating further haematological workup. Evaluating monoclonal gammopathy of undetermined significance, known as MGUS, where a small monoclonal protein is detected incidentally and requires monitoring as a proportion of MGUS cases progress to multiple myeloma or related plasma cell disorders over time. Investigating unexplained elevated total protein or elevated globulin fraction on routine blood tests where protein electrophoresis characterises the nature of the elevation and identifies whether it is polyclonal, suggesting chronic inflammation or infection, or monoclonal, suggesting a plasma cell disorder. Evaluating chronic liver disease and cirrhosis where protein electrophoresis shows characteristic patterns including reduced albumin, elevated beta globulins due to elevated IgA, and a beta-gamma bridge that is highly specific for alcoholic cirrhosis and advanced liver fibrosis. Assessing nephrotic syndrome where significantly reduced albumin alongside compensatory elevation of alpha-2 globulins reflects the characteristic protein loss and compensatory hepatic protein production pattern of this kidney disorder. Investigating chronic infections and autoimmune conditions including tuberculosis, HIV, rheumatoid arthritis, and systemic lupus erythematosus where a broad polyclonal elevation of the gamma region reflects chronic immune system activation and sustained antibody production. Monitoring known multiple myeloma or MGUS patients on treatment or surveillance where serial protein electrophoresis tracks the size and behaviour of the monoclonal spike to assess treatment response or disease progression.

The Protein Electrophoresis test measures and reports the relative and absolute concentrations of each protein fraction in the blood, reported in grams per decilitre (g/dL). Normal Protein Fractions Range in India The standard reference ranges used across most Indian diagnostic laboratories are as follows. Total protein is normally between 6.0 and 8.0 g/dL. Albumin is normally between 3.5 and 5.0 g/dL and represents the largest single fraction. Alpha-1 globulins are normally between 0.1 and 0.3 g/dL. Alpha-2 globulins are normally between 0.6 and 1.0 g/dL. Beta globulins are normally between 0.7 and 1.1 g/dL. Gamma globulins are normally between 0.8 and 1.6 g/dL. Interpreting Protein Electrophoresis Results A monoclonal spike in the gamma or beta region, regardless of its size, is an abnormal and clinically significant finding that requires further investigation with immunofixation electrophoresis to identify the specific immunoglobulin class and with serum free light chains to complete the plasma cell disorder workup. A diffuse polyclonal elevation of the gamma region indicates chronic immune activation and is most commonly seen in chronic infections such as tuberculosis and HIV, autoimmune diseases, and chronic liver disease rather than malignancy. A low albumin with elevated alpha-2 globulins is a classic pattern of acute or chronic inflammatory states, nephrotic syndrome, or significant liver dysfunction where albumin synthesis is reduced and acute phase proteins are elevated.

Fasting for 8 to 12 hours before the test is recommended for the most accurate result as recent food intake can affect protein levels. You may drink water normally during the fasting period. Our team confirms preparation requirements at the time of booking. Inform the phlebotomist about all medications you are currently taking, particularly immunosuppressants, corticosteroids, chemotherapy agents, and intravenous immunoglobulin therapy, as these directly affect protein levels and immunoglobulin fractions and must be disclosed for accurate interpretation. Inform your doctor about any recent blood transfusions or intravenous albumin infusions as these can transiently alter protein fractions and affect electrophoresis pattern interpretation. Avoid strenuous physical exercise for 24 hours before the test as intense activity can transiently affect inflammatory protein levels. Stay normally hydrated before sample collection.

If you are booking through the SecondMedic platform the Protein Electrophoresis test price starts at approximately Rs. 884. The exact price will be confirmed at the time of booking through SecondMedic. If your doctor has prescribed multiple tests alongside Protein Electrophoresis, SecondMedic health packages include Protein Electrophoresis as part of a broader haematology, myeloma workup, or liver disease panel at a significantly lower combined price.

SecondMedic provides home sample collection for Protein Electrophoresis test across all major areas in India. You do not need to visit a lab or collection centre. A certified and trained phlebotomist comes to your home or workplace at your chosen time, collects the sample using sterile single-use equipment, and ensures it is transported to the NABL-accredited lab within the required time window for accurate processing. Please note that SecondMedic provides free home sample collection on all tests priced above Rs. 300. Our team will check your pincode and confirm if your address falls under our free sample collection eligibility criteria, which depends upon the lab location and phlebotomist availability. Home collection is available between 7 AM and 10 PM, seven days a week, including Sundays and public holidays. Enter your pincode on the booking page or call our helpline to confirm availability at your address.