Aclient is experiencing chest pain and self-administers nitroglycerine sublingually. when should the client expect to notice relief of the chest pain?

Nitroglycerin relaxes the arteries and veins. It pools the blood in the extremities dropping blood pressure. Chest pain relief can be expected in 1-3 minutes. Because it is administered sublingually, it is absorbed directly in the bloodstream. If the chest pain did not improve in 5 minutes, it should be repeated. It can be repeated the third time( after 5 minutes from second dose). If the pain doesn't subside after 3 doses, emergency care is needed.