ATI RN
Cardiovascular System Exam
1. What is a condition where the pulmonary arteries become blocked by a blood clot, leading to chest pain, shortness of breath, and other symptoms?
- A. Pulmonary embolism
- B. Pneumothorax
- C. Pulmonary edema
- D. Pulmonary hypertension
Correct answer: A
Rationale: The correct answer is A, pulmonary embolism. Pulmonary embolism is a condition where a blood clot blocks one of the pulmonary arteries in the lungs, resulting in symptoms like chest pain, shortness of breath, and other related signs. Choices B, C, and D are incorrect because pneumothorax refers to a collapsed lung, pulmonary edema is the build-up of fluid in the lungs, and pulmonary hypertension is high blood pressure in the arteries of the lungs - none of which directly involve a blood clot blocking the pulmonary arteries.
2. The client is on amiodarone. What is the most important side effect to monitor for?
- A. Pulmonary toxicity
- B. Thyroid dysfunction
- C. Liver toxicity
- D. Renal dysfunction
Correct answer: A
Rationale: The correct answer is A: Pulmonary toxicity. Amiodarone is known for causing serious pulmonary toxicity, which can be fatal. Monitoring for pulmonary toxicity is crucial due to its potential severity. Choice B, thyroid dysfunction, is a common side effect of amiodarone but is not as immediately life-threatening as pulmonary toxicity. Choices C and D, liver toxicity and renal dysfunction, are potential side effects of amiodarone but are not as critical or as common as pulmonary toxicity, making them less important to monitor initially.
3. 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.
4. 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.
5. What is the ability of cardiac cells to respond to an impulse by transmitting the impulse along cell membranes?
- A. Contractility
- B. Automaticity
- C. Conductivity
- D. Rhythmicity
Correct answer: C
Rationale: The correct answer is C, Conductivity. Conductivity refers to the ability of cardiac cells to transmit impulses along cell membranes. Contractility (Choice A) is the ability of cardiac cells to contract in response to an electrical stimulus, not transmit impulses. Automaticity (Choice B) is the ability of cardiac cells to spontaneously generate electrical impulses. Rhythmicity (Choice D) refers to the regular generation of electrical impulses by the heart's pacemaker cells, not the transmission of impulses along cell membranes.
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