Helicobacter pylori Antigen, EIA, Stool

Helicobacter pylori Antigen, EIA, Stool

Test Code

34838
87338
CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.
34838
87338
CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.
In-home collection is not available in your area through Quest Mobile.

Clinical Significance

Helicobacter pylori Antigen, EIA, Stool - The importance of Helicobacter pylori in gastrointestinal diseases has increased greatly since Marshall and Warren described the presence of Campylobacter-like organisms in the antral mucosa of patients with histological evidence of antrum gastritis and peptic ulcers, especially duodenal ulcers. The strong correlation between the presence of H. pylori within histologically confirmed gastritis, peptic ulcer disease and gastric carcinoma and lymphoma, as well as disease resolution after H. pylori eradication, indicates a causative relationship. The ecological niche in humans ...

Test Resources

Clinical Focus

Helicobacter pylori Infection: Laboratory Support of Diagnosis and Management

Test Details

Patient Preparation

For initial diagnostic purposes no special patient preparation is required. Patients are not required to be off of medications or to fast before this test. While positive test results from patients taking agents such as proton pump inhibitors and antimicrobials should be considered accurate, false negative results may be obtained. For this reason, physicians may suggest the patient go off medications for two weeks and repeat test if negative results are obtained.
To confirm eradication, testing should be done at least 4 weeks following the completion of treatment. However, a positive test result 7 days post therapy is indicative of treatment failure.
This test is cleared for use with specimens from pediatric patients.

Methodology

Immunoassay (IA)

Reference Range(s)

See Laboratory Report

Alternative Name(s)

H. pylori Antigen,Campylobacter pylori Antigen,H. pylori Stool Antigen

LOINC® Codes, Performing Laboratory

Service Area must be determined
For initial diagnostic purposes no special patient preparation is required. Patients are not required to be off of medications or to fast before this test. While positive test results from patients taking agents such as proton pump inhibitors and antimicrobials should be considered accurate, false negative results may be obtained. For this reason, physicians may suggest the patient go off medications for two weeks and repeat test if negative results are obtained.
To confirm eradication, testing should be done at least 4 weeks following the completion of treatment. However, a positive test result 7 days post therapy is indicative of treatment failure.
This test is cleared for use with specimens from pediatric patients.

Methodology

Immunoassay (IA)

Reference Range(s)

See Laboratory Report

Alternative Name(s)

H. pylori Antigen,Campylobacter pylori Antigen,H. pylori Stool Antigen
Service Area must be determined

Preferred Specimen(s)

0.5 mL or 0.5 grams of semi-solid stool or
20 mm diameter solid stool collected in a clean plastic leak-proof container

Alternative Specimen(s)

Cary-blair stool culture transport medium • C & S transport medium

Minimum Volume

0.5 mL or 0.5 grams semi-solid stool • 20 mm solid stool

Transport Container

Plastic leak-proof container

Transport Temperature

Unpreserved: Frozen
Cary-Blair and C&S: Room temperature

Specimen Stability

  • Unpreserved
  • Room temperature: 4 days
  • Refrigerated: 4 days
  • Frozen: 14 days
  •  
  • Cary-Blair or C&S
  • Room temperature: 4 days
  • Refrigerated: 4 days
  • Frozen: Unacceptable

Reject Criteria

Concentrated fecal specimens • Stool in transport media other than those listed above • Swab

Setup Schedule

Service Area must be determined
0.5 mL or 0.5 grams of semi-solid stool or
20 mm diameter solid stool collected in a clean plastic leak-proof container
Cary-blair stool culture transport medium • C & S transport medium
0.5 mL or 0.5 grams semi-solid stool • 20 mm solid stool
Plastic leak-proof container
Unpreserved: Frozen
Cary-Blair and C&S: Room temperature
Unpreserved
Room temperature: 4 days
Refrigerated: 4 days
Frozen: 14 days

Cary-Blair or C&S
Room temperature: 4 days
Refrigerated: 4 days
Frozen: Unacceptable
Concentrated fecal specimens • Stool in transport media other than those listed above • Swab
Service Area must be determined
In-home collection is not available in your area through Quest Mobile.
Test Details

Clinical Significance

Test Resources

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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