ATI LPN
LPN Pharmacology Questions
1. A client has a new prescription for phenytoin. Which of the following instructions should the nurse include?
- A. Take the medication with a full glass of water.
- B. Avoid consuming dairy products.
- C. Take the medication on an empty stomach.
- D. Expect a metallic taste in your mouth.
Correct answer: B
Rationale: The correct instruction for a client prescribed phenytoin is to avoid consuming dairy products. Dairy products can reduce the absorption of phenytoin. Taking the medication with a full glass of water (Choice A) is generally a good practice for oral medications but is not specifically required for phenytoin. Taking the medication on an empty stomach (Choice C) can lead to gastrointestinal upset, so it is not recommended for phenytoin. Expecting a metallic taste in the mouth (Choice D) is a possible side effect of phenytoin but is not a crucial instruction for the client to follow.
2. 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.
3. The healthcare provider is reviewing the medication orders for a client with angina pectoris. Which medication is typically prescribed to prevent angina attacks?
- A. Aspirin
- B. Nitroglycerin
- C. Atenolol
- D. Simvastatin
Correct answer: B
Rationale: Nitroglycerin is the medication typically prescribed to prevent angina attacks. It works by dilating blood vessels, increasing blood flow, and reducing the heart's workload, hence relieving angina symptoms. Aspirin is often used to prevent blood clots, not specifically to prevent angina attacks. Atenolol is a beta-blocker used to manage high blood pressure and chest pain but is not typically prescribed to prevent angina attacks. Simvastatin is a statin medication primarily used to lower cholesterol levels and is not indicated for preventing angina attacks.
4. The client with diabetes mellitus has gangrene of the toes to the midfoot. Which goal should be included in this client's plan of care?
- A. Restore skin integrity.
- B. Prevent infection.
- C. Promote healing.
- D. Improve nutrition.
Correct answer: B
Rationale: Preventing infection is crucial in clients with gangrene to halt the spread of infection and avert further complications. Infections can exacerbate tissue damage and lead to systemic complications, making infection prevention a priority in the care plan for this client. Restoring skin integrity and promoting healing may not be achievable goals until the infection is under control. Improving nutrition is important for overall health but may not be the priority when the immediate concern is preventing infection.
5. A client is prescribed clopidogrel. What laboratory result should be monitored by the nurse?
- A. White blood cell count
- B. Creatinine
- C. Blood glucose
- D. Platelet count
Correct answer: D
Rationale: When a client is prescribed clopidogrel, monitoring the platelet count is essential. Clopidogrel is an antiplatelet medication that works by preventing blood clots. Monitoring the platelet count is crucial in assessing the risk of thrombocytopenia, a potential side effect of clopidogrel. Monitoring white blood cell count, creatinine, or blood glucose is not directly related to the action or side effects of clopidogrel, making choices A, B, and C incorrect.
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