C3 Nephritic Factor

C3 Nephritic Factor measures the activity of a protein called C3 in your blood. This protein plays a vital role in your immune system, helping your body fight infections and maintain overall health. Understanding your C3 levels can provide valuable insights into how well your immune system is functioning.

This test is helpful for various reasons:

• To differentiate between types of kidney diseases
• To monitor the effectiveness of treatment for certain kidney conditions
• To assess your risk of developing kidney-related complications
• To determine the severity of an autoimmune disease affecting your kidneys

Doctors usually recommend this test if you have:

• Symptoms like blood in urine, swelling, or high blood pressure
• Been diagnosed with autoimmune diseases like lupus or rheumatoid arthritis
• A family history of kidney diseases
• Been prescribed medications that may affect kidney function

Normal range of C3 Nephritic Factor results is essential to be less than 0.37 mg/dL. Abnormal results could indicate:

• Kidney diseases like glomerulonephritis
• Autoimmune conditions affecting your kidneys
• Increased risk of infections due to weakened immune response

Discuss any abnormal results with your doctor promptly to understand their implications on your health.

When undergoing this test:

• A blood sample will be drawn from your arm.
• The sample will then be analysed in a laboratory to measure C3 levels accurately.
• The procedure is quick and relatively painless with minimal discomfort.

Before the test:

• Ensure you inform your doctor about any medications you are taking
• Fast for at least 8 hours before the test ( Doctor recommendation required)
• Avoid excessive physical exertion before the test
• Follow any specific instructions provided by your doctor to ensure accurate test results

Tests that are often recommended alongside C3 Nephritic Factor include:

• Complement Component Tests: To assess other components of the immune response
• Kidney Function Tests: To evaluate overall kidney health and function

Properdin Factor Bb Test or Alternative Pathway Assay

Membranoproliferative glomerulonephritis (MPGN) is a kidney disease characterised by inflammation and damage to the filtering units (glomeruli) of the kidneys. It can lead to protein and blood leakage into the urine, affecting kidney function. This condition is closely linked to abnormalities detected by C3 Nephritic Factor testing.