Gastric Occult Blood




Test Mnemonic

FGSTRO

CPT Codes

  • 82271 - QTY (1)

Aliases

  • Gastroccult

Includes

  • Gastric Occult Blood

Performing Laboratory

n/a


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLFluid, gastricClean container RefrigeratedDeliver to laboratory immediately after collection.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.5 mL     

Stability

Environmental Condition Description
AmbientTesting should be performed as soon as possible after collection
FrozenTesting should be performed as soon as possible after collection
RefrigeratedTesting should be performed as soon as possible after collection

Days Performed

Sun - Sat

Turnaround Time

24 hours

Methodology

Name Description
Colorimetry 

Reference Range

Special Info

Patient Preparation: Patient should refrain from antacid administration and stomach irrigation 60 minutes prior to sample collection. Ascorbic acid (vitamin C) may cause false-negative test results for occult blood.