Of the layers of the skin, which has NO direct blood supply?

Before nitroglycerin is administered, you should ensure that:

a. nitroglycerin is in fact prescribed for the patient. b. the patient rates his chest pain as at least 7 on a scale of 1 to 10. c. the patient's systolic blood pressure is at least 110 mmHg. d. the patient is standing.

Which of the following signs or symptoms is suggestive of right-sided congestive heart failure?

a. Elevated blood pressure b. Edema in the legs and feet c. A bounding pulse d. An irregular heart rate