How is focal segmental glomerulosclerosis (FSGS) diagnosed?
Several tests may lead your doctor to suspect a diagnosis of FSGS. These tests can include:
- Blood test: Taking a sample of blood to measure levels of protein and fat.
- Glomerular filtration rate (GFR): Checking a blood sample to measure how well your kidneys work.
- Urine test: Measuring the levels of blood and protein in your urine.
However, a definitive diagnosis of FSGS can only be made with a kidney biopsy.
- Kidney biopsy: Using a needle to take a small sample of tissue from the kidney for a lab to study for signs of FSGS under a microscope.
Sometimes, doctors use genetic testing to confirm diagnosis of genetic FSGS. But because genetic tests can be expensive, and there are no known treatments for many forms of genetic FSGS, genetic testing is not common.