ATI RN
Physical Exam Cardiovascular System
1. What test measures the electrical activity of the heart and can detect heart rhythm problems?
- A. Electrocardiogram (ECG or EKG)
- B. Chest X-ray
- C. MRI
- D. CT scan
Correct answer: A
Rationale: The correct answer is Electrocardiogram (ECG or EKG). An electrocardiogram is a test that measures the electrical activity of the heart and can detect irregularities in heart rhythm. Choices B, C, and D are incorrect because a chest X-ray, MRI, and CT scan do not specifically measure the electrical activity of the heart or detect heart rhythm problems.
2. What is an acute respiratory infection that inflames the alveoli in one or both lungs, causing them to fill with fluid or pus?
- A. Pneumonia
- B. Bronchitis
- C. Tuberculosis
- D. Asthma
Correct answer: A
Rationale: Pneumonia is the correct answer because it is an acute respiratory infection that inflames the alveoli in one or both lungs, leading to the accumulation of fluid or pus. This condition presents with symptoms like cough, fever, and difficulty breathing. Bronchitis is the inflammation of the bronchial tubes, not the alveoli. Tuberculosis is a bacterial infection that primarily affects the lungs but does not always result in alveolar inflammation. Asthma is a chronic respiratory condition characterized by airway inflammation and narrowing, not alveolar inflammation.
3. What is a condition where the heart muscle becomes thickened without an obvious cause, leading to a reduction in the heart's ability to pump blood?
- A. Hypertrophic cardiomyopathy
- B. Dilated cardiomyopathy
- C. Restrictive cardiomyopathy
- D. Myocarditis
Correct answer: A
Rationale: Hypertrophic cardiomyopathy is the correct answer. It is a condition characterized by the abnormal thickening of the heart muscle without an obvious cause, which impairs the heart's ability to effectively pump blood. Dilated cardiomyopathy (choice B) involves the enlargement and weakening of the heart chambers, not thickening. Restrictive cardiomyopathy (choice C) refers to the stiffening of the heart muscle, limiting its ability to fill properly. Myocarditis (choice D) is inflammation of the heart muscle usually caused by a viral infection, not thickening.
4. The client is on spironolactone (Aldactone). What is the most important dietary instruction?
- A. Avoid foods high in potassium.
- B. Increase intake of foods high in potassium.
- C. Avoid foods high in sodium.
- D. Increase intake of foods high in sodium.
Correct answer: A
Rationale: The correct answer is to avoid foods high in potassium. Spironolactone is a potassium-sparing diuretic, meaning it helps the body retain potassium and can lead to hyperkalemia if too much potassium is consumed. Choices B, C, and D are incorrect because increasing intake of potassium-rich foods can worsen hyperkalemia, while avoiding foods high in sodium is not the primary concern when taking spironolactone.
5. The nurse is giving a client an IV bolus of heparin. What is the most important nursing action?
- A. Monitor the client's heart rate.
- B. Check the client's blood pressure.
- C. Check for signs of bleeding.
- D. Monitor the client's respiratory rate.
Correct answer: A
Rationale: When administering an IV bolus of heparin, the most important nursing action is to monitor the client's heart rate. Heparin can cause bradycardia as a side effect, making it crucial to assess the heart rate for any abnormalities. Checking the blood pressure (Choice B) is important but not as critical as monitoring the heart rate. While checking for signs of bleeding (Choice C) is essential, it is not the most crucial action when administering heparin. Monitoring the respiratory rate (Choice D) is also important but not as directly related to the potential side effects of heparin as monitoring the heart rate.
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