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. When educating a client with a new prescription for nitroglycerin, which of the following instructions should the nurse include?
- A. Store the medication in a cool, dark place.
- B. Take the medication before bedtime.
- C. Take the medication with food.
- D. Take the medication at the first sign of chest pain.
Correct answer: D
Rationale: The correct instruction for a client with a new prescription for nitroglycerin is to take the medication at the first sign of chest pain. Nitroglycerin is a vasodilator used to relieve chest pain associated with angina. Taking it at the onset of chest pain ensures prompt relief by dilating blood vessels and increasing blood flow to the heart muscle. Storing nitroglycerin in a cool, dark place helps maintain its potency, while taking it with food can alter its absorption. Timing the medication with bedtime is not necessary, but prompt administration at the first sign of chest pain is crucial for effective management of angina. Choices A, B, and C are incorrect because storing the medication in a cool, dark place, taking it before bedtime, and taking it with food are not essential instructions for nitroglycerin use. The priority is to administer it promptly when chest pain occurs to achieve optimal therapeutic effects.
3. The client is starting therapy with digoxin (Lanoxin). What instruction should the nurse reinforce about the medication?
- A. Take the medication with meals.
- B. Avoid dairy products.
- C. Monitor for yellow or blurred vision.
- D. Increase potassium-rich foods in the diet.
Correct answer: C
Rationale: The correct answer is C: 'Monitor for yellow or blurred vision.' When a client is taking digoxin, it is crucial to monitor for signs of toxicity, such as yellow or blurred vision, as these can indicate an adverse reaction. Reporting these visual disturbances promptly to the healthcare provider is important for further evaluation and management to prevent potential complications. Choices A, B, and D are incorrect because taking digoxin with meals, avoiding dairy products, or increasing potassium-rich foods are not specific instructions related to monitoring for adverse effects of digoxin therapy.
4. The nurse is reinforcing instructions to a client with coronary artery disease who is prescribed a low-cholesterol diet. The nurse should advise the client to choose which food item?
- A. Eggs and bacon
- B. Oatmeal with fresh fruit
- C. Cream of chicken soup
- D. Grilled cheese sandwich
Correct answer: B
Rationale: Oatmeal with fresh fruit is a suitable choice for a client with coronary artery disease on a low-cholesterol diet as it is low in cholesterol and provides heart-healthy benefits. Eggs and bacon, cream of chicken soup, and grilled cheese sandwich are higher in cholesterol and may not be as heart-healthy for this client. Eggs and bacon are high in cholesterol, cream of chicken soup may contain saturated fats, and a grilled cheese sandwich typically contains high amounts of fat and cholesterol, making them less suitable choices for a client with coronary artery disease on a low-cholesterol diet.
5. A client has a new prescription for amlodipine. Which of the following instructions should the nurse include?
- A. Take the medication with food.
- B. Monitor blood pressure daily.
- C. Increase intake of potassium-rich foods.
- D. Avoid consuming grapefruit juice.
Correct answer: B
Rationale: The correct answer is B: 'Monitor blood pressure daily.' When a client is prescribed amlodipine, it is essential to monitor their blood pressure regularly. Amlodipine is known to cause hypotension, so monitoring blood pressure helps ensure it stays within the desired range to prevent complications associated with low blood pressure. Choice A is incorrect because amlodipine can be taken with or without food. Choice C is incorrect as increasing potassium intake is not a specific instruction related to amlodipine. Choice D is incorrect as grapefruit juice interactions are not typically a concern with amlodipine.
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