Medical Necessity Documentation:
Client Notes:
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.
Specimen Requirements:
0.5 mL grams of fresh Stool in a wide mouth sterile collection container
Collection Instructions:
Collect 0.5 mL or 0.5 grams of semi-solid stool or 20 mm diameter solid stool and transfer to properly labeled plastic, leak-proof container.
Do not place stool in preservative, transport media or swab.
Minimum Volume:
1 gram
Transport & Storage: Temperature/Stability:
72 hours Refrigerated
30 days Frozen (prefered)
Rejection Criteria:
Watery, diarrhea stool; Stool in preservative
Reference Range:
Negative
Critical Ranges:
Test Comments:
Methodology:
Enzyme Immunoassay
Clinical Significance:
Colonization with H. pylori is associated with increased risk of patients developing gastritis, peptic ulcer disease, and gastric adenocarcinoma. Stool antigen testing provides a sensitive measure of infection including during and after treatment
Documentation:
Custom Panel:
No
PRODUCTION SCHEDULE
Turn Around Time:
3 to 7 days
Days Performed:
Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed:
Quest - Chantilly
PHL Test Code:
HPST
EPIC Test Code:
LAB2596
Send Out Test Code:
34838
Alternate Test Names:
H Pylori Stool Antigen; H. Pylori Stool Antigen; H-Pylori Stool Antigen
Included Tests:
CPT Coding:
87338