1*FOR A POSITIVE 99mTc-RBC STUDY, THE PATIENT MUST BE ACTIVELY BLEEDING*
* A POSITIVE STUDY IS LIKELY TO BE OBTAINED IF BLEEDING IS GREATER THAN 0.5 ml/minute. HOWEVER,
THIS WILL DEPEND A GREAT DEAL ON THE INTESTINAL TRANSIT TIME, WHICH WILL PERMIT A SMALLER 'POOL'
OF BLOOD TO BE IDENTIFIED IF IT IS SLOWER*
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