After the test, patients lie on their backs in the hospital for a few hours. Patients who have a transplanted kidney lie on their stomachs. During this time, the staff will monitor blood pressure and pulse and take blood samples to assess for blood loss. On rare occasions when bleeding does not stop on its own, a transfusion may be necessary to replace lost blood. Most patients leave the hospital the same day. Patients may notice some blood in their urine for 24 hours after the test.
A rare complication is infection from the biopsy.
Patients should tell their doctors or nurses if they have any of these problems:
After the biopsy, the doctor will inspect the tissue samples in the laboratory using one or more microscopes, perhaps using dyes to identify different substances that may be settled in the tissue. Electron microscopes may be used to see small details. Getting the complete biopsy results usually takes a few days. In urgent cases, a preliminary report may be given within a few hours.