The nurse caring for a client who is at risk for experiencing a myocardial infarction knows that which hemodynamic factors can affect the supply of myocardial oxygen?
Standard Text: Select all that apply.
1. Atrial fibrillation
2. Hemorrhage
3. Anemia
4. Blood pressure
5. Coronary artery disease (CAD)
Correct Answer: 2,3,4
Rationale 1: Atrial fibrillation affects the ability of the heart to pump. It is not a hemodynamic factor that affects the supply of myocardial oxygen.
Rationale 2: Hemorrhage is a hemodynamic factor that affects the supply of myocardial oxygen.
Rationale 3: Anemia is a hemodynamic factor that affects the supply of myocardial oxygen.
Rationale 4: Blood pressure is the most important hemodynamic factor that affects the supply of myocardial oxygen.
Rationale 5: Although CAD does affect oxygen supply to myocardial tissue, it is not a hemodynamic factor.
Global Rationale: Hemorrhage, anemia, and blood pressure are hemodynamic factors that affect the supply of myocardial oxygen. Atrial fibrillation affects the ability of the heart to pump. It is not a hemodynamic factor that affects the supply of myocardial oxygen. Although CAD does affect oxygen supply to myocardial tissue, it is not a hemodynamic factor.
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