Nursing Elites

1. What is a condition where the coronary arteries become narrowed or blocked, leading to reduced blood flow to the heart muscle?

• A. Coronary artery disease (CAD)
• B. Atherosclerosis
• C. Stroke
• D. Peripheral artery disease

Correct answer: A

Rationale: The correct answer is A, Coronary artery disease (CAD). CAD is a condition where the coronary arteries become narrowed or blocked, leading to reduced blood flow to the heart muscle and an increased risk of heart attack. Choice B, Atherosclerosis, is a related condition involving the buildup of fats, cholesterol, and other substances in and on the artery walls, but it is not specific to the coronary arteries. Choices C and D, Stroke and Peripheral artery disease, respectively, involve different arteries and conditions, not directly related to the narrowing or blockage of the coronary arteries.

2. The client on clopidogrel (Plavix) should be monitored for which adverse effect?

• A. Bleeding
• B. Hypertension
• C. Tachycardia
• D. Bradycardia

Correct answer: A

Rationale: Correct! Clopidogrel (Plavix) is an antiplatelet medication that helps prevent blood clots. As a side effect, it can increase the risk of bleeding. Monitoring for signs of bleeding, such as easy bruising, blood in urine or stools, or prolonged bleeding from cuts, is crucial. Choices B, C, and D are incorrect as hypertension, tachycardia, and bradycardia are not typically associated with clopidogrel use.

3. Which valve prevents backflow of blood into the right ventricle from the pulmonary artery?

• A. Pulmonary valve
• B. Aortic valve
• C. Tricuspid valve
• D. Mitral valve

Correct answer: A

Rationale: The correct answer is the Pulmonary valve. The Pulmonary valve prevents backflow of blood into the right ventricle from the pulmonary artery after it has been ejected. The Aortic valve (choice B) prevents backflow from the aorta into the left ventricle. The Tricuspid valve (choice C) prevents backflow of blood into the right atrium from the right ventricle. The Mitral valve (choice D) prevents backflow from the left ventricle into the left atrium.

4. The healthcare provider is preparing to administer heparin to a client. What lab value should be monitored?

• A. PT/INR
• B. aPTT
• C. Platelet count
• D. Hemoglobin

Correct answer: B

Rationale: The correct lab value that should be monitored when administering heparin is the aPTT (activated partial thromboplastin time). Heparin affects the intrinsic pathway of the coagulation cascade, and aPTT is a sensitive measure to assess the effectiveness of heparin therapy. Monitoring aPTT helps in adjusting the heparin dose to maintain the desired anticoagulant effect. PT/INR is more specific to monitor warfarin therapy, not heparin. Platelet count and hemoglobin levels are important parameters to assess bleeding tendencies and oxygen-carrying capacity but are not directly related to monitoring heparin therapy.

5. Which valve prevents backflow of blood into the left ventricle from the aorta?

• A. Aortic valve
• B. Mitral valve
• C. Tricuspid valve
• D. Pulmonary valve

Correct answer: A

Rationale: The correct answer is Aortic valve. The aortic valve is positioned between the left ventricle and the aorta. It prevents blood from flowing back into the left ventricle after it has been pumped into the aorta. The mitral valve (Choice B) is located between the left atrium and the left ventricle, the tricuspid valve (Choice C) is between the right atrium and right ventricle, and the pulmonary valve (Choice D) is situated between the right ventricle and the pulmonary artery. Therefore, they are not responsible for preventing backflow from the aorta into the left ventricle.

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