ATI LPN
LPN Pharmacology
1. A client's serum calcium level is 7.9 mg/dL. The nurse is immediately concerned, knowing that this level could lead to which complication?
- A. Stroke
- B. Cardiac arrest
- C. High blood pressure
- D. Urinary stone formation
Correct answer: B
Rationale: A serum calcium level below normal (hypocalcemia) can lead to cardiac arrhythmias and potentially cardiac arrest. Calcium plays a crucial role in cardiac muscle contractility, and low levels can disrupt normal heart function, potentially leading to fatal arrhythmias and cardiac arrest. Choices A, C, and D are incorrect as hypocalcemia is not directly associated with stroke, high blood pressure, or urinary stone formation. The immediate concern with low serum calcium levels is the risk of cardiac complications.
2. A client with myocardial infarction suddenly becomes tachycardic, shows signs of air hunger, and begins coughing frothy, pink-tinged sputum. The nurse listens to breath sounds, expecting to hear which breath sounds bilaterally?
- A. Rhonchi
- B. Crackles
- C. Wheezes
- D. Diminished breath sounds
Correct answer: B
Rationale: In this scenario, the client is exhibiting signs of pulmonary edema, which can occur as a complication of myocardial infarction. Crackles are typically heard in cases of pulmonary edema, characterized by fluid accumulation in the lungs. These crackling sounds are heard during inspiration and sometimes expiration and are an indication of fluid-filled alveoli. Therefore, when assessing the client with these symptoms, the nurse would expect to hear crackles bilaterally. Rhonchi, which are coarse rattling respiratory sounds, are typically associated with conditions like bronchitis or pneumonia, not pulmonary edema. Wheezes are high-pitched musical sounds heard in conditions like asthma or COPD, not commonly present in pulmonary edema. Diminished breath sounds suggest decreased airflow or lung consolidation, not typical findings in pulmonary edema.
3. The client is being ambulated due to activity intolerance caused by bacterial endocarditis. How can the nurse determine that the client is best tolerating ambulation?
- A. Mild dyspnea after walking 10 feet
- B. Minimal chest pain rated 1 on a 1-to-10 pain scale
- C. Pulse rate that increases from 68 to 94 beats per minute
- D. Blood pressure that increases from 114/82 to 118/86 mm Hg
Correct answer: D
Rationale: A slight increase in blood pressure without significant symptoms indicates that the client is tolerating the activity. In this scenario, a mild increase in blood pressure without other symptoms is a positive sign of tolerance to ambulation despite the underlying condition of bacterial endocarditis. Choices A, B, and C are not the best indicators of tolerance to ambulation in this case. Mild dyspnea after walking a short distance, minimal chest pain, and an increase in pulse rate are common signs that the activity might not be well-tolerated by the client with a history of bacterial endocarditis.
4. The client with Raynaud's phenomenon is being taught by the nurse about preventing episodes. Which instruction should the nurse reinforce?
- A. Wear gloves in cold weather.
- B. Avoid caffeine and chocolate.
- C. Increase intake of vitamin C.
- D. Use a heating pad for warmth.
Correct answer: A
Rationale: The correct answer is A: 'Wear gloves in cold weather.' Wearing gloves in cold weather is essential for preventing vasoconstriction and subsequent episodes of Raynaud's phenomenon. Cold temperatures can trigger vasospasms in individuals with Raynaud's, and wearing gloves helps maintain warmth and prevent the constriction of blood vessels in the extremities, reducing the likelihood of an episode. Choices B, C, and D are incorrect because while avoiding caffeine and chocolate, increasing vitamin C intake, and using a heating pad for warmth can be beneficial for overall health, they are not specifically targeted at preventing Raynaud's phenomenon episodes triggered by cold weather.
5. A client with a history of coronary artery disease (CAD) is prescribed simvastatin (Zocor). The nurse should teach the client about which potential side effect?
- A. Muscle pain
- B. Dry mouth
- C. Drowsiness
- D. Diarrhea
Correct answer: A
Rationale: Muscle pain is a common side effect of statins like simvastatin and can indicate a serious condition called rhabdomyolysis. Rhabdomyolysis is a severe condition where muscle fibers break down rapidly, releasing myoglobin into the bloodstream, which can lead to kidney damage. Therefore, it's important for the nurse to educate the client about this potential side effect and to promptly report any muscle pain to the healthcare provider. Dry mouth, drowsiness, and diarrhea are not commonly associated with simvastatin use and are less concerning compared to the risk of rhabdomyolysis.
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