A nurse is inserting a small-bore feeding tube. Before initiating the feeding, the nurse should take which of the following actions to verify placement?
Measure the pH of gastric aspirate.
Auscultate the epigastric area while injecting air.
Obtain an X-ray
O Place the open end of the tube in a cup of water.

Adouble-blinded trial for a new indication is conducted under an ind comparing two (2) marketed drugs, at twice the approved prescribed doses. on day 2, subject 603 had difficulty breathing. although it was life-threatening initially, subject 603 was treated and discharged directly from the emergency department after complete recovery. on day 5, subject 20 had a headache, which led to hospitalization and required blood pressure lowering medications. these episodes cannot be explained on the basis of the pharmacological property of either drug or the subjects' medical histories. the investigator would submit an sae report for