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Computed Tomography (CT) of the Right Extremity Without Contrast

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

A CT scan creates detailed images of the right arm or leg to evaluate bones and soft tissues. No contrast dye is used.

Quick summary

["This CT scan examines the right arm or leg without using contrast dye."]

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

Key facts at a glance

LOINC
69111-3
Short code
CT Extr-R WO contr
Synonyms
CT Extr-R WO contr
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?

Computed tomography, or CT, uses X-ray technology and a computer to create detailed cross-sectional images. This scan examines the right extremity, which may be the arm, shoulder, wrist, hand, hip, knee, ankle, or foot, depending on the exact area ordered.

Why might I need this test?

A CT scan may be used to evaluate an injury, such as a fracture, or to assess an infection, abnormal bone growth, foreign body, tumor, or another problem involving a joint or soft tissue.

How is the test performed?

You will lie on a padded table while a CT scanner rotates around the area being examined. The scan is generally painless and usually takes less than 30 minutes. Because this test is specified without contrast, no intravenous contrast dye is needed.

How do I prepare for the test?

Fasting is usually not required for a CT scan without contrast. Remove metal objects and jewelry from the area being scanned, and tell the technologist if you might be pregnant, have a contrast allergy, or have any implanted medical devices.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Abnormal findings may indicate a fracture, joint injury, infection, foreign body, abnormal bone growth, or a mass involving bone or soft tissue. The radiologist interprets the images and sends the results to your ordering clinician. Your clinician will explain how any findings relate to your symptoms and determine the next steps.

Short name

CT Right Extremity Without Contrast

Frequently asked questions

Does this CT scan use contrast dye?
No. “Without contrast” means no iodine-based dye is administered, either by mouth or through a vein. The scan still provides detailed images of bones and many surrounding soft tissues.
Is a right-extremity CT scan painful?
The scan itself is generally painless. You may be asked to remain still, and the scanner can feel tight in narrow spaces, but the procedure does not usually cause significant discomfort.
Can I have metal implants or jewelry during the scan?
Tell the technologist about any implants, braces, piercings, or metal objects. Items in or near the scanned area may need to be removed for image quality and safety.
  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