Skip to content

CT Angiography of the Right Upper Extremity and Wrist, Venous, with Intravenous Contrast

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

A CT scan uses intravenous contrast and X-rays to show veins in the right arm and wrist, helping evaluate blood flow and possible clots.

Quick summary

["This imaging test checks the veins and blood flow in your right arm and wrist."]

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

Key facts at a glance

LOINC
89723-1
Short code
CTA UE vv-R W contr IV
Synonyms
CTA UE vv-R 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-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?

This is a venous CT angiogram, an imaging test that uses X-rays and intravenous contrast to examine the veins in your right upper extremity, including the wrist. It is not a standard laboratory blood test.

Why might I need this test?

The test may be ordered to evaluate unexplained swelling, pain, redness, or reduced blood flow in the arm or hand. It can help identify blood clots, narrowing or blockage of veins, and variations in the arrangement of the veins.

How is the test performed?

An intravenous line is placed in a vein, usually in the arm, and contrast material is injected. The scanner then takes rapid X-ray images as contrast travels through the veins of the arm and wrist.

How do I prepare for the test?

Fasting is usually not required, but follow the instructions provided by the imaging center. Tell your care team about prior contrast reactions, kidney disease, severe allergies, pregnancy, or any medications you take, including metformin, so appropriate precautions can be taken.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Venous CTA of the Right Wrist

Frequently asked questions

Is this the same as a CT scan of the chest or abdomen?
No. This test is focused specifically on the veins of the right arm and wrist, even though the same type of scanner and contrast are used.
Will I feel the contrast injection?
You may feel a brief warm or cool sensation, and the injection site may feel pressured. Serious contrast reactions are uncommon, but tell the technologist immediately if you develop hives, itching, difficulty breathing, or significant discomfort.
Can this test confirm or rule out a blood clot?
It can often show or exclude a clot in the scanned veins. However, small clots or areas that are difficult to see may require additional ultrasound or other testing, so results should be reviewed with your clinician.
  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