what is levothyroxines pharmacologic classification
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Nursing Elites

ATI RN

Proctored Pharmacology ATI

1. What is levothyroxine's pharmacologic classification?

Correct answer: A

Rationale: Levothyroxine is classified as a thyroid preparation because it is a synthetic form of the thyroid hormone thyroxine. It is primarily used to treat hypothyroidism by supplementing or replacing the natural thyroid hormones in the body, helping to regulate metabolism and energy levels. Choice B, Metabolic Inhibitors, is incorrect because levothyroxine does not inhibit metabolism but rather helps regulate it. Choice C, Analgesic, is incorrect as levothyroxine is not used for pain relief but for thyroid hormone replacement therapy. Choice D, Loop Diuretic, is also incorrect as loop diuretics are medications that act on the kidneys to increase urine production and are not related to thyroid hormone replacement therapy.

2. A client has a new prescription for Digoxin for heart failure. Which of the following adverse effects should the client monitor for and report to the provider?

Correct answer: D

Rationale: The correct answer is D: Yellow-tinged vision. Yellow-tinged vision is a potential adverse effect of Digoxin and may indicate toxicity. Clients should be instructed to report this symptom promptly to the healthcare provider to prevent complications. Dry cough (choice A) is not typically associated with Digoxin. Pedal edema (choice B) is more commonly seen with heart failure but is not a direct adverse effect of Digoxin. Bruising (choice C) is not a common adverse effect of Digoxin.

3. A client with Peptic Ulcer Disease who is taking Sucralfate PO has a new prescription for phenytoin to control seizures. Which of the following instructions should the nurse include?

Correct answer: C

Rationale: Sucralfate can interfere with the absorption of phenytoin. To prevent this interaction, the client should allow a 2-hour interval between taking sucralfate and phenytoin. This interval helps ensure that each medication is absorbed effectively without affecting the other's absorption. Choices A, B, and D are incorrect because taking an antacid with sucralfate, taking sucralfate with a glass of milk, or chewing sucralfate thoroughly before swallowing are not necessary or recommended instructions to prevent the interaction between sucralfate and phenytoin.

4. A client is starting a new prescription for enalapril. Which of the following instructions should the nurse include?

Correct answer: C

Rationale: The correct instruction for a client starting enalapril is to avoid salt substitutes. Salt substitutes may contain potassium, which could lead to elevated potassium levels when combined with enalapril, increasing the risk of hyperkalemia. Choices A, B, and D are incorrect because there is no specific need to take enalapril with food, rise slowly from a sitting position, or avoid exposure to sunlight when taking this medication.

5. A healthcare professional is preparing to administer morphine 4 mg IV to a client. Available is morphine 10 mg/mL. How many mL should the healthcare professional administer?

Correct answer: B

Rationale: To administer 4 mg from a solution of 10 mg/mL, the healthcare professional should administer 0.4 mL. The calculation is done by dividing the desired dose (4 mg) by the concentration of the solution (10 mg/mL), which equals 0.4 mL. Choice A (0.2 mL) is incorrect because it is half of the correct calculation. Choice C (0.6 mL) is incorrect because it is 50% more than the correct calculation. Choice D (0.8 mL) is incorrect because it exceeds the correct calculation.

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