ATI RN
Cardiovascular System Exam Questions And Answers
1. The nurse is monitoring a client on dobutamine. What adverse effect should the nurse watch for?
- A. Tachycardia
- B. Bradycardia
- C. Hypertension
- D. Respiratory distress
Correct answer: A
Rationale: The correct answer is A: Tachycardia. Dobutamine is a medication that stimulates beta-1 adrenergic receptors in the heart, leading to increased heart rate. Therefore, tachycardia is a common adverse effect that the nurse should monitor for. Choices B, C, and D are incorrect because dobutamine typically does not cause bradycardia, hypertension, or respiratory distress as its primary adverse effects.
2. This is the inflammation of the heart's inner lining, usually caused by an infection.
- A. Endocarditis
- B. Myocarditis
- C. Pericarditis
- D. Valvulitis
Correct answer: A
Rationale: Endocarditis is the inflammation of the inner lining of the heart's chambers and valves, usually caused by a bacterial infection. Myocarditis is the inflammation of the heart muscle, Pericarditis is the inflammation of the pericardium (the outer lining of the heart), and Valvulitis is the inflammation of the heart valves. Therefore, in this case, the correct answer is Endocarditis as it specifically refers to the inflammation of the heart's inner lining.
3. Which of the following is a rare genetic disorder that affects the lungs, liver, and skin, causing the buildup of a specific protein that damages organs?
- A. Alpha-1 antitrypsin deficiency
- B. Cystic fibrosis
- C. Wegener's granulomatosis
- D. Marfan syndrome
Correct answer: A
Rationale: The correct answer is Alpha-1 antitrypsin deficiency. This disorder leads to the accumulation of a specific protein that can harm the lungs, liver, and skin. Choice B, Cystic fibrosis, is incorrect because it primarily affects the lungs and digestive system due to a defective gene. Choice C, Wegener's granulomatosis, is an autoimmune disease that involves inflammation of blood vessels, not protein buildup. Choice D, Marfan syndrome, is a connective tissue disorder impacting the heart, blood vessels, bones, and eyes, but not involving protein accumulation that damages organs.
4. The nurse is administering enoxaparin (Lovenox) to a client. What is the most important lab value to monitor?
- A. Platelet count
- B. Hemoglobin
- C. White blood cell count
- D. aPTT
Correct answer: A
Rationale: The correct answer is A: Platelet count. When administering enoxaparin, it is crucial to monitor the platelet count because enoxaparin can lead to a rare but serious side effect known as thrombocytopenia, which is a decrease in platelet levels. Monitoring the platelet count helps in detecting this adverse effect early. Choices B, C, and D are incorrect because hemoglobin, white blood cell count, and aPTT are not the most important lab values to monitor specifically for enoxaparin administration.
5. What is a type of medication that helps to prevent blood clots by thinning the blood?
- A. Anticoagulant
- B. Beta-blocker
- C. ACE inhibitor
- D. Calcium channel blocker
Correct answer: A
Rationale: Anticoagulants are medications specifically designed to prevent blood clots by thinning the blood. They work by interfering with the body's blood clotting process. Beta-blockers, ACE inhibitors, and calcium channel blockers are medications used for different purposes such as managing blood pressure, heart conditions, and regulating heart rhythm, respectively. However, they do not have the primary function of preventing blood clots like anticoagulants.
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