| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Gastric Occult Blood (Gastroccult)
MessageNOTE: Special Diets: Many foods (e.g., incompletely cooked meat, raw fruits and vegetables, etc) have peroxidase activity which may produce a positive
Gastroccult® test result.
Gastroccult® test result.
Test Code
OBGA Test
Alias/See Also
Occult Blood, Gastric
OBGA - test code for PMCH, TCH, WMC
OBGA - test code for PMCH, TCH, WMC
CPT Codes
82272
Preferred Specimen
A gastric aspirate obtained by nasogastric intubation or vomitus. Specimen should be tested immediately after collection.
If using Hemaprompt cards, do not pull silver tab.
If using Hemaprompt cards, do not pull silver tab.
Specimen Stability
24 hours at room temp or 5 days refrigerated
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Frozen, and/or not properly stored, applied to Test Area and not properly stored > 5 days post collection
Reference Range
Negative
Clinical Significance
Flecks or streaks of blood are commonly seen as a result of minor trauma during
intubation. Blood of greater amount and longer duration in the acid-secreting stomach
will be brown and granular; the so-called “coffee-ground” appearance. Blood can be
from gastric lesions such as gastritis, ulcer, or carcinoma or can be from other lesions in
the mouth, nasopharynx, or respiratory tract.
The identification of occult blood by the Gastroccult method can be useful in the early
detection of gastric trauma or deteriorating gastric condition.
intubation. Blood of greater amount and longer duration in the acid-secreting stomach
will be brown and granular; the so-called “coffee-ground” appearance. Blood can be
from gastric lesions such as gastritis, ulcer, or carcinoma or can be from other lesions in
the mouth, nasopharynx, or respiratory tract.
The identification of occult blood by the Gastroccult method can be useful in the early
detection of gastric trauma or deteriorating gastric condition.
