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
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.
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