Which of the following medications, if taken in the last 24 hours, would be a contraindication to administering nitroglycerin?

The QRS complex reflects:

A) atrial depolarization. B) ventricular depolarization. C) ventricular repolarization. D) atrial repolarization.

Which of the following refers to tissues or organs put into the body, usually from donors who have died?

A) Transplants B) Grafts C) Donors D) Implants E) None of the above