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HelpTest Code Gast OB GASTROCCULT
Aliasis
Occult Blood, Gastric Fluid
Patient Preparation
No special patient preparation required
Collection Method
Gastric aspirate by nasogastric intubation or vomitus collected in a sterile container.
Minimum Volume
0.5 mL
Container
Sterile container
Preferred Specimen
Gastric aspirate by nasogastric intubation or vomitus collected in a sterile container
Acceptable Specimen(s)
Gastric aspirate by nasogastric intubation or vomitus collected in a sterile container
Reference or Target Ranges
Negative
Reportable Units
Positive/Negative
pH result
Critical Value
Not defined for this assay
Reasons for Rejection
|
Other: |
QNS, contaminated, Improperly labeled, Improper specimen type |
Specimen Stability
|
Ambient |
24 Hours |
|
Refrigerated |
5 Days |
Performance Information
|
Days and Time Performed |
24/7 |
|
Expected Turn Around Time |
Stat: 1 Hour, Routine: 4 Hours |
|
Stat Availability |
Yes |
|
Performing Bench |
CRMC Urinalysis |
Additional Information / Important Notes
1. Some oral medications can cause an irritation and occult bleeding in some patients. If possible, these substances should be discontinued two days prior to and during testing.
2. As with any occult blood procedure, “Hemoccult or Gastroccult” cannot be considered conclusive evidence of the presence or absence of gastrointestinal bleeding or pathology. This is designed to be a prelminary screening as an aid to diagnosis and is not intended to replace other diagnostic procedures.
Methodology/Method Description
Gastroccult Cards and Developer – This test kit is impregnated with guaiac resin, When the developing solution of hydrogen peroxide with denatured alcohol is added to guaiac in the presence of hemoglobin the hemoglobin catalyzes the oxidation of guaiac to a blue color.
CPT Codes
82271