[Verified Answer]: Several patients require stool specimens…

Several patients require stool specimens for diagnostic testing. Which patient’s stool specimen must be taken immediately to the laboratory after it has been obtained? Patient traveled to a foreign country and reports abdominal cramping with diarrhea. Patient saw very dark black stool several days ago, but now stool seems normal. Patient (small child) is suspected of swallowing a plastic marble 3 days ago. Patient saw stool floating in toilet and there was an oily film in the water.