The taking of a tiny sample of kidney tissue to help determine the cause of protein or blood in the urine or to monitor the effectiveness of treatments for kidney disorders. A kidney biopsy is done by administering a local anesthesia and then inserting a sterile, narrow, hollow needle into a kidney to extract tissue, which is then examined by a pathologist under a microscope. A kidney biopsy is considered the most accurate assessment of abnormalities in kidney tissue.
A technique involving the extraction of a minor portion of kidney tissue for microscopic analysis. Kidney biopsy is conducted to investigate and diagnose significant conditions like glomerulonephritis, proteinuria, nephrotic syndrome, and acute kidney failure, or to evaluate the kidneys’ reaction to treatment.
Two fundamental methods are utilized: percutaneous needle biopsy, wherein a hollow needle is inserted through the skin into the kidney under local anesthesia; and open surgery conducted under general anesthesia.