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1. A patient with chest pain tells you that he feels the same as when he had a heart attack two years ago. He is diaphoretic, nauseated, vomiting, and has a pulse of 84, respirations 16, and a blood pressure of 78/50 mmHg. He is allergic to aspirin. He asks you to assist him in taking one of his nitroglycerin pills. Which one of the assessment findings that follows represents a contraindication to the nitroglycerin?