Kidney biopsy (guided, with tissue analysis for cellular and structural assessment)
A small sample of kidney tissue is carefully removed under imaging guidance to examine its structure and identify any abnormalities, such as inflammation, scarring, or disease.
["This test helps diagnose kidney conditions that may not show symptoms or be detected by blood or urine tests alone."]
Key facts at a glance
- LOINC
- 87041-0
- Short code
- Guided Kidney Bx
- Synonyms
- Guided Kidney Bx
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- imaging-modality
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why Is This Test Done?
Your doctor may recommend a guided kidney biopsy if you have unexplained symptoms like persistent swelling, blood in urine, or high blood pressure, or if tests suggest kidney disease. It’s also used to confirm diagnoses like glomerulonephritis, polycystic kidney disease, or other kidney disorders that require a closer look at tissue.
What to Expect Before the Procedure
You’ll likely be given a local anesthetic to numb the area, and a small incision is made. A needle guided by imaging (like ultrasound or CT) collects tissue samples. Recovery is usually quick, but you may need to rest for a few hours afterward.
During the Procedure
The biopsy is performed in a hospital or clinic setting under strict sterile conditions. Imaging helps pinpoint the exact location in your kidney to avoid major blood vessels. The samples are then sent to a lab for microscopic examination by a pathologist.
What the Results Mean
Results will show the kidney’s microscopic structure, such as cell types, damage, or signs of disease. Normal tissue may indicate no issues, while abnormal findings could point to conditions like fibrosis, infection, or genetic disorders.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: This test is critical for diagnosing kidney diseases that require tissue-level evaluation, guiding treatment decisions, and monitoring chronic conditions like lupus nephritis or diabetic kidney disease. It helps determine the cause of kidney dysfunction when other tests are inconclusive.
Short name
Guided Kidney Biopsy with Pathology
Frequently asked questions
How long will I need to rest after the biopsy?
Will the biopsy hurt?
Can I eat or drink before the procedure?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy