Renal biopsy is a procedure in which a small piece of renal tissue (tissue from the kidneys) is cut and obtained for the purpose of diagnosis. Renal biopsy is performed to diagnose the cause of various kidney diseases. Ultrasound-guided biopsy of the kidney is routinely performed under local anaesthesia, except in children, for whom a mild general anaesthesic is used. Bedside renal biopsies are performed for sick patients in the ICU and in the ward.
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