At a community health fair, a nurse stresses the importance of a cardiac-prudent diet and exercise routine in order to help prevent coronary artery disease. Which is the correct rationale for this teaching?
1. Diet and exercise always reduce coronary artery disease.
2. Coronary arteries supply the myocardium with nutrients.
3. Diet and exercise are more effective treatment modalities in the prevention of coronary artery disease than are medications.
4. Coronary arteries spasm in response to exercise, which enhances myocardial perfusion.
Correct Answer: 2
Rationale 1: Diet and exercise alone do not always reduce coronary artery disease.
Rationale 2: Patent coronary arteries are needed to supply the heart muscle with nutrients.
Rationale 3: Diet and exercise alone might not prevent coronary artery disease; pharmacotherapy may be required.
Rationale 4: Coronary artery spasms reduce myocardial perfusion.
Global Rationale: Patent coronary arteries are needed to supply the heart muscle with nutrients. Diet and exercise alone do not always reduce coronary artery disease; pharmacotherapy may be required. Coronary artery spasms reduce myocardial perfusion.
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