A client with unstable angina is prescribed heparin therapy. The client asks the nurse about the purpose of this medication. How should the nurse respond?

"Heparin is used to dissolve blood clots in your coronary arteries and restore blood flow to your heart."

"It helps relax your blood vessels and improve blood flow to your heart muscle."

"Heparin is an anticoagulant that prevents further clot formation in your coronary arteries."

"It is a pain reliever used to reduce chest discomfort during episodes of angina."

Answer and Explanation

The Correct Answer is C

A) This choice is incorrect because heparin does not directly dissolve existing blood clots in coronary arteries. It is used to prevent further clot formation and growth.

B) This choice is incorrect because heparin's primary action is not to relax blood vessels. It is an anticoagulant that inhibits clot formation.

C) This choice is correct. Heparin is an anticoagulant medication used to prevent further clot formation in coronary arteries and reduce the risk of complications in clients with unstable angina.

D) This choice is incorrect because heparin is not a pain reliever. It does not directly address chest discomfort during angina episodes; its role is in preventing and managing thrombosis.

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Correct Answer is B

Explanation

A) This choice is incorrect because while exercise can contribute to weight loss and reduce the risk of diabetes, its primary benefit in cardiac rehabilitation is related to cardiovascular health, specifically improving blood flow to the heart and lowering blood pressure.

B) This choice is correct. Regular exercise in cardiac rehabilitation has significant benefits for the cardiovascular system. It improves blood flow to the heart muscle, enhances collateral circulation, and can help lower blood pressure, all of which are crucial in managing and preventing further complications after an MI.

C) This choice is incorrect because although exercise can help build muscle strength and improve bone health, these are not the primary benefits sought in cardiac rehabilitation. The focus is on cardiovascular health and recovery.

D) This choice is incorrect because while exercise can have positive effects on mental health, such as reducing stress and anxiety, its primary benefit in cardiac rehabilitation is related to cardiovascular health.

A. "Oxygen reduces chest pain by dilating your coronary arteries." B. "Oxygen helps your heart pump blood more effectively." C. "Oxygen increases your oxygen levels and relieves shortness of breath." D. "Oxygen prevents further clot formation in your coronary arteries."

Correct Answer is C

Explanation

A: Oxygen does not directly dilate coronary arteries; medications such as nitrates are responsible for this effect.
B: While oxygen aids in metabolic processes, it does not directly affect the heart's pumping efficiency in the context of angina pectoris.
C: Oxygen therapy increases the oxygen saturation of the blood, which can help alleviate symptoms like shortness of breath and chest pain associated with angina by ensuring that the heart muscle receives sufficient oxygen to function properly.
D: Oxygen therapy is not a treatment for preventing clot formation; this is typically managed with anticoagulant medications.

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A client with unstable angina is prescribed heparin therapy. The client asks the nurse about the purpose of this medication. How should the nurse respond?

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Naxlex Comprehensive Predictor Exams

A client who recently had an MI is instructed to participate in cardiac rehabilitation. The client asks the nurse about the benefits of exercise in the program. How should the nurse respond?

Correct Answer is B

Explanation

A client with angina pectoris reports chest pain and is receiving oxygen therapy. The client asks the nurse about the purpose of oxygen administration. How should the nurse respond?

Correct Answer is C

Explanation

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