61. at 0500 hours, you respond to the home of a 76 year old man complaining of chest pain. upon arrival the patient states that he had been sleeping in the recliner all night due to indigestion, when the pain woke him up. he also tells you he has taken two nitroglycerin tablets. his vital signs are as follows: respirations, 16 breaths/min; pulse, 98 beats/min; blood pressure, 92/76 mm hg. he is still complaining of chest pain. what actions should you take to intervene.