ATI RN
Physical Exam Cardiovascular System
1. The client is on digoxin and has severe digoxin toxicity. What is the nursing priority action?
- A. Check the potassium level.
- B. Give Digibind as an antidote.
- C. Change the dosing of digoxin to every other day.
- D. Administer a potassium supplement to decrease digoxin toxicity.
Correct answer: B
Rationale: The correct answer is to give Digibind as an antidote in cases of severe digoxin toxicity. Digibind works by binding to digoxin and preventing it from causing further harm. Checking the potassium level (choice A) is important but not the priority when the client has severe toxicity. Changing the dosing to every other day (choice C) is not appropriate in the setting of severe toxicity where immediate action is required. Giving a potassium supplement (choice D) may be needed eventually, but the priority is to administer Digibind to counteract the toxic effects of digoxin.
2. What is the abnormal accumulation of fluid in the pleural space, often associated with infections or malignancies?
- A. Pleural effusion
- B. Pneumothorax
- C. Pulmonary edema
- D. Atelectasis
Correct answer: A
Rationale: The correct answer is A, pleural effusion. Pleural effusion is the accumulation of excess fluid between the layers of the pleura outside the lungs, often caused by infections, cancer, or other diseases. Pneumothorax (choice B) is the presence of air in the pleural space, not fluid. Pulmonary edema (choice C) is the accumulation of fluid in the lungs' air sacs and tissue, not in the pleural space. Atelectasis (choice D) is the collapse or closure of a lung resulting in reduced or absent gas exchange.
3. The client on nitroglycerin complains of a headache. What is the most appropriate response by the nurse?
- A. Administer acetaminophen as prescribed for the headache.
- B. Hold the next dose of nitroglycerin.
- C. Discontinue the nitroglycerin immediately.
- D. Notify the healthcare provider immediately.
Correct answer: A
Rationale: The correct response is to administer acetaminophen as prescribed for the headache. Headaches are a common side effect of nitroglycerin due to vasodilation. Administering acetaminophen can help relieve the headache. Holding the next dose of nitroglycerin (Choice B) may not address the current headache, and discontinuing nitroglycerin immediately (Choice C) without healthcare provider guidance can be dangerous due to the potential for rebound hypertension. Notifying the healthcare provider immediately (Choice D) is not necessary for a common side effect like a headache, and the nurse can manage this symptom independently.
4. What is the term for the ability of cardiac cells to respond to a stimulus by initiating a cardiac impulse?
- A. Excitability
- B. Contractility
- C. Rhythmicity
- D. Conductivity
Correct answer: A
Rationale: The correct answer is A, Excitability. Excitability is the ability of cardiac cells to respond to a stimulus by initiating a cardiac impulse. Choice B, Contractility, refers to the ability of cardiac muscle to shorten forcibly. Choice C, Rhythmicity, refers to the cardiac muscle's ability to contract rhythmically. Choice D, Conductivity, refers to the ability of the heart's cells to conduct electrical impulses.
5. What is a condition where blood clots form in the deep veins, usually in the legs, and can travel to the lungs, causing serious complications?
- A. Deep vein thrombosis (DVT)
- B. Pulmonary embolism
- C. Varicose veins
- D. Peripheral artery disease
Correct answer: A
Rationale: The correct answer is A, Deep vein thrombosis (DVT). Deep vein thrombosis occurs when blood clots form in the deep veins, usually in the legs, and these clots can potentially travel to the lungs, leading to a pulmonary embolism. Pulmonary embolism (choice B) is a serious complication that can result from untreated DVT. Varicose veins (choice C) and peripheral artery disease (choice D) are not directly related to the formation of blood clots in deep veins that can lead to pulmonary embolism.
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