A kidney biopsy is a diagnostic procedure in which a small sample of kidney tissue is obtained and examined to identify the underlying cause and nature of kidney disease.
Why is a kidney biopsy done?
A biopsy may help doctors investigate:
- Unexplained deterioration of kidney function
- Protein in urine
- Blood in urine
- Suspected glomerular disease
- Certain inflammatory kidney diseases
- Some complex kidney conditions
How is it performed?
The procedure is generally performed using imaging guidance to help the doctor obtain a small tissue sample from the kidney safely.
The sample is then sent for specialized laboratory examination.
Before the procedure
Your doctor may review:
- Blood pressure
- Blood counts
- Blood-clotting parameters
- Kidney function
- Current medications
Certain medicines may need to be adjusted before the procedure under medical supervision.
After the procedure
Patients are monitored after the biopsy for possible complications and are given instructions regarding activity, medication and follow-up.