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Gastric Occult Blood

Mnemonic:    [GASTROCULT]
Name:    Gastric Occult Blood
Specimen:     Gastric aspirate or vomitus submitted on a gastroccult card or 1 mL of gastric aspirate or vomitus in a clean container.
Minimum Spec:    1 mL
Transport Temp:    Store and transport sample at Room Temperature.
Reference Range:    Negative
  Method:    Gastroccult & pH Color Indicator
Note:    pH is only valid for 30 seconds after application on test card. Many foods (incompletely cooked meat, raw fruits & vegetables, etc.) have peroxidase activity which can produce a positive Gastroccult result. Thus, a positive test does not always indicate the presence of human blood.
Processing Info:    Deliver to urinalysis/serology immediately.