ATI RN
Cardiovascular System Exam Questions And Answers
1. The nurse is teaching a client about the side effects of beta blockers. What is the most important side effect to monitor?
- A. Hypotension
- B. Bradycardia
- C. Hyperkalemia
- D. Tachycardia
Correct answer: A
Rationale: The most important side effect to monitor when a client is on beta blockers is hypotension. Beta blockers can cause a significant drop in blood pressure, especially at the initiation of therapy. Monitoring for hypotension is crucial to prevent complications such as dizziness, syncope, or falls. While bradycardia can also occur with beta blockers, hypotension takes precedence due to its immediate impact on perfusion. Hyperkalemia is not a common side effect of beta blockers. Tachycardia is actually a condition that beta blockers aim to treat, so it is not a side effect to monitor.
2. The client on nitroglycerin patches reports dizziness when standing up. What is the nurse’s best response?
- A. Advise the client to rise slowly to prevent dizziness.
- B. Instruct the client to discontinue the nitroglycerin patches.
- C. Encourage the client to rest and avoid physical activity.
- D. Suggest the client take an over-the-counter antiemetic.
Correct answer: A
Rationale: The correct answer is to advise the client to rise slowly to prevent dizziness. Dizziness when standing up can be a sign of orthostatic hypotension, a common side effect of nitroglycerin. Rising slowly can help minimize this symptom. Instructing the client to discontinue the nitroglycerin patches (Choice B) is not appropriate without consulting a healthcare provider as sudden discontinuation can lead to adverse effects. Encouraging the client to rest and avoid physical activity (Choice C) does not address the specific issue of orthostatic hypotension. Suggesting the client take an over-the-counter antiemetic (Choice D) is not indicated for dizziness related to orthostatic hypotension.
3. What is a condition where a blood clot forms in a deep vein, usually in the legs, and can lead to serious complications if it travels to the lungs?
- A. Deep vein thrombosis (DVT)
- B. Pulmonary embolism
- C. Varicose veins
- D. Raynaud's disease
Correct answer: A
Rationale: The correct answer is A, Deep vein thrombosis (DVT). Deep vein thrombosis occurs when a blood clot forms in a deep vein, usually in the legs. If the clot dislodges and travels to the lungs, it can lead to a serious condition called a pulmonary embolism. Choice B, pulmonary embolism, is incorrect as it is the consequence of a DVT clot traveling to the lungs, not the initial condition. Choices C and D, varicose veins, and Raynaud's disease, respectively, are unrelated conditions to the formation of blood clots in deep veins.
4. What is the term for a condition where the lung collapses due to air leaking into the space between the lung and the chest wall?
- A. Pneumothorax
- B. Pleural effusion
- C. Atelectasis
- D. Pulmonary fibrosis
Correct answer: A
Rationale: Pneumothorax is the correct answer for this question. Pneumothorax is the collapse of a lung caused by the presence of air in the pleural space between the lung and chest wall. This condition can lead to chest pain, shortness of breath, and may require emergency treatment such as chest tube insertion to remove the air. Pleural effusion is the accumulation of fluid in the pleural space, not air. Atelectasis is the collapse or closure of a lung resulting in reduced or absent gas exchange. Pulmonary fibrosis is a condition characterized by scarring and thickening of lung tissue, not related to air leaking into the pleural space.
5. Which type of heart disease involves the stiffening of the heart muscle, reducing its ability to relax and fill with blood?
- A. Restrictive cardiomyopathy
- B. Hypertrophic cardiomyopathy
- C. Dilated cardiomyopathy
- D. Ventricular hypertrophy
Correct answer: A
Rationale: The correct answer is A, restrictive cardiomyopathy. This condition specifically involves the stiffening of the heart muscle, leading to a reduced ability to relax and fill with blood between beats. Choice B, hypertrophic cardiomyopathy, is characterized by abnormal thickening of the heart muscle, not stiffening. Choice C, dilated cardiomyopathy, involves the enlargement and weakening of the heart chambers, not stiffening. Choice D, ventricular hypertrophy, refers to the thickening of the walls of the heart's pumping chambers but does not specifically involve the stiffening that is characteristic of restrictive cardiomyopathy.
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