ATI RN
Physical Exam Cardiovascular System
1. The nurse is administering digoxin to a client with a heart rate of 45 bpm. What is the nurse’s priority action?
- A. Hold the digoxin and notify the healthcare provider.
- B. Administer the digoxin as ordered.
- C. Increase the dose of digoxin.
- D. Monitor the client’s heart rate and reassess in 30 minutes.
Correct answer: A
Rationale: The correct answer is to hold the digoxin and notify the healthcare provider. A heart rate of 45 bpm is already low, and digoxin can further decrease the heart rate, leading to serious complications like bradycardia or heart block. Administering the medication can exacerbate the bradycardia, hence it should be withheld. Increasing the dose of digoxin is contraindicated due to the client's low heart rate. Monitoring the heart rate alone without taking immediate action to withhold the medication is not the priority when faced with the risk of further lowering the heart rate.
2. When administering furosemide (Lasix) to a client, which lab value is most important to monitor?
- A. Potassium
- B. Sodium
- C. Calcium
- D. Chloride
Correct answer: A
Rationale: When administering furosemide (Lasix), it is crucial to monitor potassium levels closely. Furosemide is a loop diuretic that can lead to potassium loss, potentially causing hypokalemia. Monitoring potassium levels helps prevent adverse effects associated with low potassium, such as cardiac arrhythmias. While monitoring sodium, calcium, and chloride levels may also be important in certain situations, potassium is the most critical to monitor when administering furosemide.
3. This is a chronic condition where the heart is unable to pump enough blood to meet the body's needs.
- A. Heart failure
- B. Cardiomyopathy
- C. Myocarditis
- D. Pericarditis
Correct answer: A
Rationale: The correct answer is A: Heart failure. Heart failure is a chronic condition characterized by the heart's inability to pump enough blood to meet the body's needs, resulting in symptoms such as fatigue, shortness of breath, and fluid retention. Choice B, Cardiomyopathy, refers to diseases of the heart muscle that can lead to heart failure but is not the specific term for the condition described. Choices C and D, Myocarditis and Pericarditis, respectively, are conditions involving inflammation of the heart muscle or the lining around the heart, which can cause heart failure as a complication but are not the primary condition described in the question.
4. This is a type of therapy that involves removing fluid from the lungs, typically through the use of diuretics.
- A. Diuretic therapy
- B. Oxygen therapy
- C. Inhaler therapy
- D. Antihistamine therapy
Correct answer: A
Rationale: The correct answer is A: Diuretic therapy. Diuretic therapy involves the use of medications that help remove excess fluid from the body, often used to treat conditions like pulmonary edema. Choice B, Oxygen therapy, is used to provide oxygen to patients with breathing difficulties but does not involve removing fluid from the lungs. Choice C, Inhaler therapy, is used to deliver medication directly to the lungs to help with respiratory conditions but does not focus on removing fluid. Choice D, Antihistamine therapy, is used to treat allergies by blocking histamine but is not related to removing fluid from the lungs.
5. What is a surgical procedure to redirect blood flow around a blocked or narrowed artery, often involving the use of a graft from another part of the body?
- A. Coronary artery bypass graft (CABG)
- B. Valve replacement
- C. Aneurysm repair
- D. Atherectomy
Correct answer: A
Rationale: The correct answer is A: Coronary artery bypass graft (CABG). This surgical procedure is used to redirect blood flow around a blocked or narrowed artery by using a graft from another part of the body. Choices B, C, and D are incorrect because valve replacement involves replacing heart valves, aneurysm repair addresses the treatment of aneurysms, and atherectomy is a procedure to remove plaque from blood vessels, none of which match the description provided in the question.
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