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 will start Alfuzosin for the treatment of Benign Prostatic Hyperplasia. The nurse should instruct the client that which of the following is an adverse effect of this medication?

Correct answer: C

Rationale: The correct answer is C, Hypotension. Alfuzosin relaxes muscle tone in veins, leading to vasodilation and reduced systemic vascular resistance. This effect can cause hypotension due to decreased cardiac output. Clients should be advised to rise slowly from a sitting or lying position to minimize the risk of orthostatic hypotension. Choices A, B, and D are incorrect because bradycardia, edema, and tremor are not commonly associated adverse effects of Alfuzosin.

3. A client has a new prescription for nitroglycerin sublingual tablets. Which of the following instructions should the nurse include?

Correct answer: A

Rationale: The correct instruction for a client with a new prescription for nitroglycerin sublingual tablets is to take one tablet at the first sign of chest pain. If the pain persists after 5 minutes, the client should call 911 and take a second tablet. Choice A is correct because taking one tablet at the onset of chest pain helps to relieve symptoms by dilating blood vessels and improving blood flow to the heart. Choices B and C are incorrect as they suggest taking multiple tablets without waiting for the initial dose to take effect, which can lead to hypotension and other adverse effects. Choice D is incorrect as nitroglycerin sublingual tablets should not be swallowed but instead placed under the tongue for rapid absorption.

4. A client has a new prescription for Brimonidine ophthalmic drops and wears soft contact lenses. Which of the following instructions should the nurse include in the teaching?

Correct answer: C

Rationale: The correct instruction the nurse should include is that Brimonidine can absorb into soft contact lenses. To prevent this, the client should remove the contacts, instill the medication, and wait at least 15 minutes before putting the contacts back in to avoid any potential absorption of the medication into the lenses. Choices A, B, and D are incorrect because Brimonidine is not known to stain contacts, cause pupil constriction, or slow heart rate.

5. A client has been prescribed Aspirin for prevention of cardiovascular disease. Which of the following findings indicates the medication is effective?

Correct answer: C

Rationale: The correct answer is C. A decrease in episodes of angina is an indicator of Aspirin's effectiveness in preventing cardiovascular events. Aspirin works by inhibiting platelet aggregation, thereby reducing the formation of blood clots that could lead to angina episodes or more severe cardiovascular complications. Choices A, B, and D are incorrect because troponin levels, heart rhythm, and blood pressure are not direct indicators of Aspirin's effectiveness in preventing cardiovascular events.

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