Kidney Function Tests
Blood and urine tests used to assess how well the kidneys are functioning and to look for evidence of kidney damage.
What the test involves
Kidney assessment commonly includes blood tests such as serum creatinine and estimated glomerular filtration rate (eGFR), together with urine tests such as urine albumin or protein measurements.
Why it may be requested
These tests may be requested to:
- Assess kidney function
- Detect kidney disease
- Monitor people with diabetes or hypertension
- Monitor medicines that may affect the kidneys
- Investigate abnormal urine findings
- Assess patients with suspected kidney injury
How to prepare
Preparation depends on the specific blood or urine tests being performed. Follow the laboratory's instructions. Tell the healthcare provider about medicines and supplements you are taking.
Understanding results
Creatinine and eGFR are commonly used to assess kidney filtration. Urine albumin or protein may provide evidence of kidney damage.
Results should be interpreted together with age, medical history, medications, hydration status and previous results. An abnormal result does not automatically indicate permanent kidney disease and may require repeat testing or further assessment.
A test result on its own cannot establish a diagnosis.
