CT Sacrum With Intravenous Contrast
A CT scan creates detailed images of the sacrum, the bony area at the base of the spine, using injected contrast material.
["This CT scan uses intravenous contrast to produce detailed images of the sacrum and surrounding structures."]
Key facts at a glance
- LOINC
- 36245-9
- Short code
- CT Sacrum W contr IV
- Synonyms
- CT Sacrum 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?
This is a computed tomography (CT) scan of the sacrum, the triangular bone at the base of the spine. Intravenous contrast is injected into a vein to help certain tissues and abnormalities appear more clearly on the images.
Why might I need this test?
The test may be ordered to evaluate sacral pain, a suspected fracture, infection, tumor, or another condition involving the lower spine. It can also show how a sacral problem affects nearby nerves, muscles, and pelvic structures.
How is the test performed?
You will lie on a CT table while the scanner takes pictures from several angles. Contrast material is given through an intravenous line, and the scan is usually completed quickly, although you may be asked to remain still or hold your breath briefly.
How do I prepare for the test?
Follow the instructions provided by the imaging center, especially if you have an allergy to iodine or contrast material, kidney disease, or are pregnant or breastfeeding. Tell the care team about medications and prior contrast reactions; you may be asked about eating, drinking, and taking medicines before the scan.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
The scan can help identify fractures, infection, bone changes, masses, and other abnormalities involving the sacrum. The radiologist will interpret the images in the context of your symptoms and examination, and your doctor will discuss the findings. Results alone do not establish a diagnosis or determine treatment.
Short name
CT Sacrum With IV Contrast
Frequently asked questions
Does this test use radiation?
What is intravenous contrast used for?
Will I need someone to drive me home?
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