CT Scan of the Nasopharynx and Neck Without Contrast
A CT scan creates detailed cross-sectional images of the nasopharynx and neck without using iodinated contrast.
["This imaging test evaluates structures in the nasopharynx and neck and may help identify masses, inflammation, or other abnormalities."]
Key facts at a glance
- LOINC
- 30585-4
- Short code
- CT Nasopharynx+Neck WO contr
- Synonyms
- CT Nasopharynx+Neck WO contr
- 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 nasopharynx, the area behind the nose, and the neck. It uses X-rays to create detailed cross-sectional images without iodinated contrast.
Why might I need this test?
Your clinician may order this scan to evaluate persistent nasal or throat symptoms, neck swelling, enlarged lymph nodes, or a suspected mass. It can also help assess the extent of an abnormality or monitor certain conditions.
How is the test performed?
You will lie on a CT table while the scanner takes X-ray images from several angles. The procedure is generally painless and usually takes only a short time, although you may be asked to hold your breath briefly.
How do I prepare for the test?
No special preparation is usually required for a CT scan without contrast. Wear comfortable clothing without metal fasteners if possible, and tell the imaging technologist if you are pregnant, may be pregnant, or have had a recent reaction to iodinated contrast.
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, fluid collections, or changes in nearby tissues. The radiologist describes these findings in the report, and your clinician interprets them together with your symptoms, examination, and other tests.
Short name
CT Nasopharynx and Neck Without Contrast
Frequently asked questions
Does this CT scan use contrast?
Is a CT scan of the nasopharynx and neck painful?
How soon will I receive the results?
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