Which of the Following Patients Would Be at Greatest Risk

Which of the following patients would be at greatest risk in a health care visit?

A) Bruno requires an anticoagulant. He tells the nurse about his medications. He does not include an herbal supplement.
B) Glen is very shy and withdrawn. He asks the nurse to leave him alone.
C) Sarah is a new parent who finds that nurses on the children's unit are very helpful. She is eager to accept all suggestions, including those that she does not yet understand.
D) Claude is scheduled for bowel surgery. His surgeon explains about the colostomy. Later, Claude tells his wife that he really does not know what the surgeon meant by "colostomy."