Test Details
Methodology
IR (infrared) spectroscopy to assess the presence of 13CO2
Result Turnaround Time
1 - 4 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Test Includes
Analysis of pre- and postbreath samples to detect 13CO2
Use
The urea breath test can be used to aid in the diagnosis of H pylori infection. The test can also be used to assess therapy when it is administered more than a month after completion of therapy.
Special Instructions
This test can be performed on adult patients and pediatric patients between the ages of 3 and 17.
References
Custom Additional Information
The present standard of care includes testing for and treatment of Helicobacter pylori in patients with documented ulcer disease or recurrent dyspepsia. Although serologic assays have been widely used for the diagnosis of H pylori, the increasing availability of direct tests in the form of stool antigen and urea breath test provide diagnostic alternatives with higher positive predictive values. Use of “direct” tests leads to a reduction in unnecessary treatment, which is important because of the continuing concern regarding antimicrobial treatment and the emergence of antibiotic resistance. These tests each have the added feature of being able to be used as a test of cure when administered a month or more after completion of eradication therapy.
Specimen Requirements
Specimen
Breath samples pre- and post-ingestion of fruit-flavored powder solution, containing 13C-urea diagnostic component.
Volume
One pre- and one post-ingestion breath sample
Container
One blue sample bag labeled “baseline” and one "postdose" sample bag
Collection Instructions
Blue sample bag (baseline) must be collected as follows:
• Remove the blue breath collection bag from the kit.
• Remove the pulloff cap from mouthpiece of the breath collection bag.
• Instruct the patient to breathe normally, then take a deep breath, pause holding their breath for a full second (counting one, one thousand) then exhale into the mouthpiece of the bag.
• Replace the cap in the mouth piece of the bag.
Prepare the fruit-flavored powder solution, containing 13C-urea diagnostic component as detailed in the kit instructions
Postdose sample bag is collected as follows:
• Instruct the patient to drink all the solution without “rinsing” mouth before swallowing.
• Have the patient sit quietly for 15 minutes. Set timer for 15 minutes.
• After 15 minutes, collect the gray sample bag as outlined for the baseline specimen above.
All sample bags must be labeled according to Labcorp specimen labeling policies.
Reference Range
Negative
Storage Instructions
Maintain specimen at room temperature.
Patient Preparation
The patient should fast for at least one hour prior to testing. The patient should not take antimicrobials, proton pump inhibitors, or bismuth preparations within two weeks prior to testing. Note: Solution contains phenylalanine. Phenylketonurics should be warned.
Causes for Rejection
Prolonged transport more than seven days; specimens collected from persons younger than 3 years of age
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 180836 | H pylori Breath Test | 29891-9 | 180835 | H pylori Breath Test | 29891-9 | |
| Order Code | 180836 | |||||
| Order Code Name | H pylori Breath Test | |||||
| Order Loinc | 29891-9 | |||||
| Result Code | 180835 | |||||
| Result Code Name | H pylori Breath Test | |||||
| UofM | ||||||
| Result LOINC | 29891-9 |