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CT Scan of the Left Ankle with IV Contrast

Published: August 9, 2026Updated: August 16, 2026

A CT scan of the left ankle using IV contrast to create detailed images of the bones and surrounding tissues.

Quick summary

["This scan provides detailed images of the left ankle to evaluate injuries and other structural abnormalities."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
36135-2
Short code
CT Ankle W contr IV
Synonyms
CT Ankle 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
ct
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?

A left ankle CT scan uses X-rays and a computer to create cross-sectional images of the ankle. IV contrast, usually an iodinated material, may be given through a vein to improve the visibility of certain tissues and abnormalities.

Why might I need this test?

The scan may be ordered to evaluate a suspected fracture, joint injury, infection, inflammation, tendon or ligament problem, or another structural abnormality that is not clearly visible on a standard X-ray.

How is the test performed?

You will lie on a scanning table while the CT scanner takes images from different angles. If IV contrast is used, it is administered through a small tube in a vein, and you may be asked to remain still during the scan.

How do I prepare for the test?

Follow the imaging center's instructions, and do not fast unless specifically told to do so. Tell the care team about any prior contrast reaction, iodine allergy, kidney disease, pregnancy, or other relevant medical conditions before receiving contrast.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Left Ankle CT with IV Contrast

Frequently asked questions

Does this test use radiation?
Yes. CT scans use ionizing radiation, and IV contrast may also be administered. The benefits and risks are considered when the scan is ordered.
What if I have had a reaction to contrast before?
Tell the imaging team about the reaction before the scan. The team can review your history, determine whether contrast is necessary, and take appropriate precautions.
Is this the same as a regular ankle X-ray?
No. A CT scan produces more detailed cross-sectional images and may reveal complex fractures or soft-tissue abnormalities that are difficult to assess on a standard X-ray.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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