Answer Happy

QUESTION 1 Case Study Patient Mis 75 years of age, who presented to her local emergency room with sudden complaints of chest pain. She described the pain as a severe substernal burning sensation that radiated across the chest to her shoulders bilaterally and then to the neck and jaw region. Although not brought on by exertion, the chest pain was associated with dyspnea, pallor, diaphoresis, nausea, and epigastric discomfort . Patient M had taken one nitroglycerin tablet with partial relief. When the chest pain recurred 10 to 15 minutes later, her family dialed 911 and the local emergency medical service responded. Once transported to the emergency room, her pain persisted. She received two additional doses of nitroglycerin and was placed on 2 L of oxygen per nasal cannula. Following stabilization, she was admitted to a telemetry floor for further observation and medical management. Nursing assessment revealed a 50-pack-year history of cigarette smoking, hypertension, and mild-to-moderate obesity. As part of the medical workup, Patient M was scheduled for a cardiac catheterization the following day. The cardiac catheterization revealed an 80% blockage of the right coronary artery and the cardiologist recommended Patient M consider a PCI to open the coronary artery blockage The following day, Patient M underwent a PCI to the right coronary artery. The procedure was progressing uneventfully until she had an episode of bradycardia; her heart rate dropped to 38 beats per minute. The patient received a 0.5 mg dose of IV atropine, which was repeated in 10 minutes. Other than this episode, Patient M did not experience any other postprocedure complications, such as hypotension, or other technical-related problems. Why was nitroglycerin given to patient M? O Relaxes and dilates the coronary vessels O Relaxes and dilates the ventricles O Relaxes and dilates only the major cardiac vessels such as the aorta O Relaxes and dilates the cardiac atrium to decrease overall workload