The nurse is teaching a group of older clients about the functioning of the heart so that they are better able to participate in their care. Which client statement indicates that additional teaching is required?
1. "A high systemic blood pressure can have a negative effect on my heart."
2. "All arteries carry oxygen away from the heart."
3. "The pulmonary vein carries oxygenated blood to the heart."
4. "Arterioles carry oxygenated blood to the capillary bed."
Answer: 2
1. A high systemic blood pressure can cause a backflow of blood that eventually causes the myocardium to stretch and become less effective.
2. The pulmonary veins carry oxygenated blood to the heart, and the pulmonary arteries carry unoxygenated blood away from the heart.
3. The pulmonary vein carries oxygenated blood from the lungs to the left atrium for distribution to the body.
4. Arteries branch off into smaller arterioles that feed the capillary beds with oxygenated blood for the tissues.
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