Hypernephroma Bleeding diathesis Pre-requisites Bleeding, clotting and prothrombin time must be done, if high then Injection Vit K. are given for 3 days and prothrombin time is repeated, if still high then biopsy must be postponed. Blood must be sent for grouping and cross-matching. Plain X-Ray abdomen or sonography must be done to determine the size of the kidneys. Renal function tests must be done eg. 50mg must be given half an hour before the procedure.
Patient lies prone with pillows below the abdomen so that the spine flexes completely.
In case of bilateral lesion is suspected, the biopsy is preferably performed on the left side. The area is sterilised with cetavlon, ether, iodine and spirit. The trochar and the cannula are penetrated through the kidney substance. The trocar is removed and the split needle, which cuts the kidney tissue is introduced. The cannula is then rotated over the split needle so that the cut kidney tissue remains between the two blades of the split needle.