A client asks which conditions will cause his heart to need more oxygen. Which responses by the nurse are appropriate?

Question

Standard Text: Select all that apply.
1. "Increased physical activity."
2. "Watching a television show."
3. "Emotional stress."
4. "Eating a meal."
5. "Listening to music."

Answer 1

Correct Answer: 1,3
Rationale 1: Increased physical activity requires more cardiac output, increasing the work of the heart and increasing myocardial oxygen demand.
Rationale 2: Watching a television show generally does not require more cardiac output.
Rationale 3: Emotional stress causes epinephrine release, increasing heart rate and contractility and increasing myocardial oxygen demand.
Rationale 4: Eating a meal generally does not require more cardiac output.
Rationale 5: Listening to music generally does not require more cardiac output.
Global Rationale: Increased physical activity requires more cardiac output, increasing the work of the heart and increasing myocardial oxygen demand. Emotional stress causes epinephrine release, increasing heart rate and contractility and increasing myocardial oxygen demand. Watching a television show, eating a meal, and listening to music generally do not require more cardiac output.