The nurse educator is describing the structure and function of ...

[cagreen833]

The nurse educator is describing the structure and function of the myocardium to a group of students working with cardiac clients. What does the nurse educator say is most likely to occur if the myocardium is deprived of oxygen?
 
  1. Sinus rhythm
  2. Decreased urine output
  3. Hepatosplenomegaly
  4. Heart failure

Question 2

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.

[nicoleclaire22]

Answer to Question 1

Correct Answer: 4
Rationale 1: A normal sinus rhythm is not likely to occur if the myocardium is deprived of oxygen. It is common for dysrythmias to occur in this situation.
Rationale 2: Decreased urine output is associated with renal disorders not decreased oxygen to the myocardium.
Rationale 3: Hepatosplenomegaly is associated with venous congestion of the liver and spleen, not decreased oxygen to the myocardium.
Rationale 4: Heart failure can occur if the myocardium is deprived of oxygen.
Global Rationale: Heart failure can occur if the myocardium is deprived of oxygen. A normal sinus rhythm is not likely to occur if the myocardium is deprived of oxygen. It is common for dysrythmias to occur in this situation. Decreased urine output is associated with renal disorders not decreased oxygen to the myocardium. Hepatosplenomegaly is associated with venous congestion of the liver and spleen, not decreased oxygen to the myocardium.

Answer to Question 2

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.