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CT Scan of the Spleen Without Contrast

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

A CT scan creates detailed images of the spleen to evaluate its size and structure. This version is performed without injected contrast dye.

Quick summary

["This CT scan checks the size and condition of the spleen without using injected contrast dye."]

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

Key facts at a glance

LOINC
30621-7
Short code
CT Spleen WO contr
Synonyms
CT Spleen 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?

A CT scan uses X-rays and a computer to create detailed pictures of the spleen and nearby abdominal structures. This is an imaging test rather than a blood or urine laboratory test, and it is performed without injected contrast dye.

Why might I need this test?

Your clinician may order this scan to investigate unexplained abdominal pain, an enlarged spleen, spleen injury, or a suspected lump or cyst. It may also be used to follow a known spleen condition or check how a liver or blood-flow problem is affecting the spleen.

How is the test performed?

You will lie on a padded table while a CT scanner rotates around you and takes X-ray images. The scan is usually brief, and a technologist will explain the process and help you remain still. No contrast dye is injected for this version of the study.

How do I prepare for the test?

Follow your clinician's instructions, including any fasting or medication guidance. Tell the imaging staff if you are pregnant or may be pregnant, and if you have kidney disease, allergies, or any recent surgery. Remove metal objects and change into a gown if requested.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

CT Spleen Without Contrast

Frequently asked questions

Does this CT scan use contrast dye?
No injected contrast dye is used in a CT scan of the spleen without contrast. The imaging facility may still use oral contrast in some cases, so confirm the preparation instructions before your appointment.
Is a CT scan of the spleen painful?
The scan itself is generally painless. You may feel brief pressure from the scanner and table, but you should tell the technologist if you experience pain, dizziness, or trouble breathing.
How soon will I receive the results?
A radiologist will interpret the images and send the report to your ordering clinician. The timing of your results and any follow-up discussion depend on your healthcare provider's process.
  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