Immunoglobulin G (IgG) nephropathy screening or confirmation by nephelometry

Why This Test Might Be Ordered

Your healthcare provider may order this test if you have symptoms like swelling, frequent urination, or unexplained protein in your urine. It could also be part of evaluating kidney disease, autoimmune conditions, or other systemic issues affecting kidney function. In some cases, it may be used alongside other tests to monitor kidney health or guide treatment decisions.

What to Expect Before the Test

No special preparation is typically needed. You may provide a urine sample in a clean container at a lab or clinic. If you’re unsure about timing, check with your provider. Avoid excessive fluid intake before the test if instructed, as it may affect results.

What the Test Results Mean

Results may indicate whether IgG is present in your urine at detectable levels. Elevated levels could suggest conditions like IgA nephropathy or other kidney-related issues, but results alone don’t diagnose a condition. Your provider will interpret results in the context of your symptoms, medical history, and other tests.

Common Conditions This Test Helps Identify

This test is often used to screen for or confirm conditions like IgA nephropathy (a type of kidney disease linked to IgG antibodies), glomerulonephritis (inflammation of kidney filters), or other kidney disorders associated with abnormal protein excretion.