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Test Code LAB6695 Fluid Occult Blood

Performing Lab

Arnot Ogden Medical Center/ Ira Davenport Memorial Hospital

Ordering Recommendations

  • The detection of blood in vomitus.
  • Determine the pH of vomitus.
  • Useful for the early detection of gastric trauma or deteriorating gastric condition.

Collect

  • Gastric aspirate obtained by nasogastric intubation.
  • Vomitus

Collection Instructions

Place vomitus sample in a clean, dry container with a tight fitting lid.

Specimen Handling

Room Temperature or Refrigerated

*Transport without delay.  pH results may be adversely affected by any delay in testing.

Storage/Transport Temperature

Room Temperature 24 hours
Refrigerated 5 days

Reference Interval

Gastric Occult Blood REFERENCE RANGE: NEGATIVE

Methodology

Guaiac

Synonyms

Gastroccult

Start Date

9/13/2017

Last Review Date

6/26/2025

7/11/25 AP