A kidney biopsy involves taking one or more tiny pieces (samples) of your kidney to look at with special microscopes. The microscopes make it possible to see the samples in greater detail. Show The biopsy sample may be taken in one of two ways:
What are the reasons for doing a kidney biopsy? Specific reasons to do a kidney biopsy include:
A kidney biopsy may also help to find:
Your healthcare professional should explain the reasons for the kidney biopsy. You should know why it is necessary, the benefits, and any risks. You will be asked to sign a consent (permission) form to make sure you are aware of any risks. Be sure you understand the risks before you sign the consent form. You may want to write down a list of questions about the biopsy. What are the possible risks of kidney biopsy? How should you prepare for the biopsy? How is the biopsy done? Percutaneous biopsy: Open kidney biopsy: After the test Your doctor will talk to you about physical activity and things to watch for after going home from the hospital. Heavy lifting, strenuous exercise, including contact sports, and sexual intercourse should be avoided for two weeks after the biopsy. If you had an open biopsy, be sure to ask your doctor for any specific instructions you need to follow after the surgery. Test results THINGS TO REMEMBER
After the biopsy:
Why would a doctor order a kidney biopsy?A kidney biopsy can help your doctor figure out what is causing your kidney problem, how severe your kidney problem is and the best treatment. Your doctor may suggest a kidney biopsy if tests show: Blood in your urine (hematuria) Protein in your urine (proteinuria)
How kidney biopsy is done?The biopsy sample may be taken in one of two ways: Percutaneous (through the skin) biopsy: a needle placed through the skin that lies over the kidney and guided to the right place in the kidney, usually with the help of ultrasound. Open biopsy: the kidney sample is taken directly from the kidney during surgery.
Where is a kidney biopsy performed?Most kidney biopsies are performed at a hospital or outpatient clinic, either in radiology or a procedure room. A kidney biopsy is also called a renal (related to the kidneys) biopsy.
What is the first preferred diagnostic test for a patient suspected to have kidney tumors?Computed tomography (CT or CAT) scan.
A CT scan can be used to measure the tumor's size. For patients being evaluated for a renal mass, a non-contrast CT scan is done first to evaluate for any non-cancerous types of disorders like a kidney stone or bleeding cyst.
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