CT Scan of the Head and Neck with Intravenous Contrast
A CT scan uses X-rays and intravenous contrast to create detailed images of the head and neck, helping evaluate masses, inflammation, infection, and other abnormalities.
["This scan can identify and characterize abnormalities in the head and neck that may be difficult to see on plain X-rays."]
Key facts at a glance
- LOINC
- 82691-7
- Short code
- CT Head+Neck W contr IV
- Synonyms
- CT Head+Neck W contr IV
- Category
- liver
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 22
- Ref high
- 198
- Critical range
- — – 10000 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- ct
- CPT
- 82553
- 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 head and neck performed with intravenous contrast material. It creates cross-sectional X-ray images that show the structure and density of tissues in greater detail.
Why might I need this test?
A head and neck CT may be used to evaluate a lump, swelling, persistent pain, infection, trauma, or suspicious findings on another imaging test. It can also help assess the extent of a known condition and guide treatment or biopsy.
How is the test performed?
You will lie on a table that moves through the CT scanner while X-ray images are taken. For the contrast-enhanced portion, an IV line is placed in a vein and contrast material is injected, usually followed by one or more scans.
How do I prepare for the test?
Follow the instructions provided by the imaging center. Tell the care team if you have kidney disease, previous reactions to iodinated contrast, or are pregnant or may be pregnant. You may be asked about allergies, medications, and whether you can remain still during the scan.
Reference range
Adult males: 22-198 U/L; Females: 22-198 U/LN/A
No special preparation required. Inform provider of any chest pain or symptoms.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Abnormal findings may include a mass, enlarged lymph nodes, inflammation, infection, bleeding, or changes involving nearby bones and soft tissues. The radiologist interprets the images in the context of your symptoms and other tests, so results should be reviewed with your healthcare professional.
Short name
Head and Neck CT with IV Contrast
Frequently asked questions
Is a head and neck CT the same as a routine CT scan?
Does the scan involve radiation?
How long does the test take?
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 17, 2026. · Read our editorial policy