Helicobacter pylori Rapid Urea Breath Test (for Gastrointestinal Evaluation)
This test checks if you have *Helicobacter pylori*, a bacteria often linked to stomach issues like ulcers or inflammation. It uses a quick breath sample after drinking a special liquid.
["A simple breath test to detect stomach bacteria that may cause discomfort or long-term issues."]
Key facts at a glance
- LOINC
- 80372-6
- Short code
- Hgb Stl gastro Ql IA.rapid
- Synonyms
- Hgb Stl gastro Ql IA.rapid
- Category
- hematology
- Sample
- stool
- Container
- Clean container
- Units
- N/A
- Ref low
- 10
- Ref high
- 40
- Critical range
- 7 N/A – 20 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- ia-rapid
- CPT
- 84484
- SNOMED
- 302774002
- Specimen volume
- 5 g
- Stability
- Refrigerated: 24h, Frozen: 7d
- TAT
- 4–24 hours
- Order
- routine
How the Test Works
You’ll swallow a small amount of a liquid containing urea. A harmless isotope (carbon-13) is added to this liquid. If *H. pylori* is present, it breaks down the urea into carbon dioxide and ammonia. You’ll then breathe into a special bag. A machine measures the amount of carbon dioxide in your breath, indicating whether the bacteria is active.
Why It’s Done
Doctors may recommend this test if you have symptoms like stomach pain, nausea, or unexplained weight loss. It’s also used to confirm if you’ve been successfully treated for *H. pylori* or to check for infection after a procedure.
What to Expect Before the Test
No special preparation is needed. You may eat or drink normally before the test, but avoid alcohol or certain medications (like antibiotics or proton pump inhibitors) for 2–4 weeks beforehand if instructed by your doctor.
What to Expect During the Test
The test takes about 30 minutes. You’ll sit quietly while the technician monitors your breath. No needles or injections are involved—just swallowing a liquid and breathing into a bag.
Reference range
Adult: 10-40 U/LN/A
No special preparation required. Avoid fatty meals before the test if possible.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Detecting *H. pylori* early can help prevent complications like stomach ulcers, gastritis, or even certain cancers. If the test is positive, your doctor may recommend treatment to eliminate the bacteria and reduce symptoms. A negative result means the bacteria is likely gone, but follow-up may be needed to confirm long-term success.
Short name
H. pylori Rapid Breath Test
Frequently asked questions
How long does the test take?
Can I eat or drink before the test?
What if I have a negative result?
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