Magnetic Resonance Angiography, Renal Vessels, with Intravenous Contrast
An MRI-based angiogram that uses intravenous contrast to produce detailed images of the blood vessels supplying and draining the kidneys.
["This test evaluates the renal arteries and veins for narrowing, blockage, aneurysms, and other vascular abnormalities."]
Key facts at a glance
- LOINC
- 30887-4
- Short code
- MRA Renal ves W contr IV
- Synonyms
- MRA Renal ves W contr IV
- Category
- liver
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- mr-angio
- 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
What is this test?
Magnetic resonance angiography (MRA) of the renal vessels is an MRI test that creates detailed pictures of the arteries and veins connected to the kidneys. Intravenous contrast is used to make the blood vessels easier to see.
Why might I need this test?
This test may be ordered to investigate suspected narrowing or blockage of a renal artery, reduced blood flow to a kidney, kidney vein clot, an aneurysm, or certain causes of high blood pressure. It may also be used to assess the renal vessels before another procedure or in certain cases of reduced kidney function.
How is the test performed?
You will lie on a table inside an MRI scanner while images are taken. Intravenous contrast is usually given through a vein in your arm, and the scan may take 30 to 60 minutes. You may be asked to remain still and may have the option of listening to music through headphones.
How do I prepare for the test?
Follow the imaging center's instructions about eating, drinking, and taking medicines. Tell the care team about any prior contrast reaction, kidney disease, pregnancy, metal implants, or devices that cannot enter the MRI scanner. The center may review your kidney function before giving contrast.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Abnormal findings may indicate narrowing, obstruction, an aneurysm, a blood clot, or another abnormality involving the renal arteries or veins. The results are interpreted together with kidney function, blood pressure, symptoms, and other imaging or laboratory tests. Sudden severe flank pain, weakness, or signs of kidney dysfunction may require prompt medical evaluation.
Short name
Renal Vessel MRA with Contrast
Frequently asked questions
Does this test use radiation?
Why is intravenous contrast used?
What should I do if I have had a reaction to contrast before?
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