Renal biopsy is also known as kidney biopsy. It is a method of extracting tissues of the kidney for laboratory diagnosis and identifying the type and severity of kidney disease you have. Renal biopsy can be either percutaneous or open.
- You might be sedated through an intravenous line in your arm or leg and you will be positioned to lie on your stomach.
- You have to remain still and be in the same position for about half an hour.
- A local anaesthetic will be injected to the entry site.
- A small incision will be made through which a needle will be inserted into your kidney.
- Imaging technologies such as CT or ultrasound will be used to direct the needle to your kidneys.
- Your doctor will extract a tissue sample which can cause slight discomfort. The process will be repeated if more tissue samples are needed.
- You will be asked to hold your breath while the samples are being extracted. It takes about 30-45 seconds to extract each sample.
- After tissues have been extracted, pressure will be applied at the biopsy site to stop bleeding.
- Appropriate dressing will be applied.
- Open biopsy is usually preferred if you have problems with bleeding or blood clotting or if you have only one kidney.
- This method is carried out in general anaesthesia.
- An incision is made, and tissue samples are surgically removed from your kidneys.
- This can also be performed using a laparoscope with smaller incisions.
- The incision is then closed and suitable dressing will be applied.
- Shorter hospital stay; usually only 12-24 hours
- Damage to kidneys or nearby organs
- Pain at the biopsy site
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