The nurse is preparing to clean the patient's hearing aid.The nurse realizes that she must:

A) make sure the hearing aid volume is turned on before removing the hearing aid.
B) hold the hearing aid over the sink when cleansing.
C) insert a paper clip into the receiver port to cleanse cerumen buildup.
D) make sure the pressure equalization channel is clear.

Which possible reasons does the nurse identify that contribute to the patient's black stools?

A) Takes ferrous sulfate 325 mg PO BID.
B) Hemorrhoids are irritated and bleeding.
C) Bleeding from a perforated gastric ulcer.
D) Incomplete small bowel obstruction.
E) Development of a Clostridium difficile infection.