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Lumbar Spine with Nonionic Contrast

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

An imaging study of the lower back performed with nonionic contrast material, which is typically injected into a vein.

Quick summary

["This test uses contrast material to create clearer images of the lumbar spine and nearby structures."]

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

Key facts at a glance

LOINC
42264-2
Short code
Deprecated L-spine W Non-ionic contr IT
Synonyms
Deprecated L-spine W Non-ionic contr IT
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 an imaging test of the lumbar spine, the lower portion of the backbone. Nonionic contrast material may be used to help certain tissues, blood vessels, or areas of inflammation appear more clearly on the images.

Why might I need this test?

Your clinician may order this test to evaluate lower-back pain, spinal narrowing, disc abnormalities, fractures, tumors, infection, or complications of nearby conditions. The specific reason depends on your symptoms and medical history.

How is the test performed?

You will lie on a table while an imaging scanner takes pictures of your lower back. If intravenous contrast is used, it is usually given through a vein in your arm before the scan and may cause a brief warm or cool sensation.

How do I prepare for the test?

Follow the instructions from the imaging center, including whether to avoid eating or drinking beforehand. Tell the care team about kidney disease, prior contrast reactions, pregnancy, and allergies, because these may affect whether contrast can safely be used.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Lumbar spine imaging with contrast

Frequently asked questions

Is this a blood test?
No. This is a lumbar spine imaging test. A blood sample is generally not required, although a small blood sample may occasionally be used to check kidney function before intravenous contrast.
Will I feel the contrast?
If contrast is injected intravenously, you may feel a brief warmth, coolness, or flushing sensation. Tell the care team immediately if you develop hives, difficulty breathing, or marked discomfort.
Can I have this test if I am pregnant?
Notify the care team before the test if you are or might be pregnant. They will review the reason for the study and the potential risks of contrast and radiation before proceeding.
  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