ATI RN
Proctored Pharmacology ATI
1. What is levothyroxine's pharmacologic classification?
- A. Thyroid Preparations
- B. Metabolic Inhibitors
- C. Analgesic
- D. Loop Diuretic
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. When teaching a client with a new prescription for Clopidogrel, which laboratory value should the nurse monitor to assess for potential adverse effects?
- A. White blood cell count
- B. Platelet count
- C. Hemoglobin
- D. Blood glucose
Correct answer: B
Rationale: Clopidogrel is an antiplatelet medication that works by reducing the formation of blood clots. Therefore, the nurse should monitor the client's platelet count to assess for potential bleeding complications. A decrease in platelet count could indicate a risk of bleeding, which is an adverse effect associated with Clopidogrel therapy. Monitoring other laboratory values like white blood cell count, hemoglobin, and blood glucose is important for assessing overall health status but is not directly related to the potential adverse effects of Clopidogrel.
3. A child is prescribed Amoxicillin 20 mg/kg/day PO to be administered every 12 hr. The child weighs 44 lb. The available medication is amoxicillin suspension 250 mg/5 mL. How many mL should be given per dose?
- A. 4 mL
- B. 5 mL
- C. 6 mL
- D. 3 mL
Correct answer: A
Rationale: To calculate the dosage per administration: Convert the weight to kg (44 lb / 2.2 lb/kg = 20 kg). Then, (20 mg/kg/day x 20 kg) / 2 (for every 12 hr dosing) = 200 mg per dose. (200 mg / 250 mg) x 5 mL = 4 mL per dose. Therefore, the nurse should administer 4 mL of amoxicillin suspension per dose. Choice B, 5 mL, is incorrect because the calculation shows that 4 mL is the correct dose. Choices C and D are also incorrect as they are not in line with the calculated dosage based on the weight of the child and the concentration of the medication.
4. When educating a client who has a prescription for Propranolol, what instruction should the healthcare provider include?
- A. Take this medication with food.
- B. Discontinue the medication if you feel fatigued.
- C. Expect to have decreased heart rate with this medication.
- D. Do not stop taking this medication abruptly.
Correct answer: D
Rationale: The correct instruction for a client with a prescription for Propranolol is not to stop taking the medication abruptly. Abrupt cessation can result in rebound hypertension or other cardiac complications. It is crucial for the client to taper off the medication gradually under healthcare provider supervision to prevent adverse effects. Choice A is incorrect because Propranolol can be taken with or without food. Choice B is incorrect as discontinuing the medication based on fatigue alone is not advisable without consulting a healthcare provider. Choice C is incorrect because while Propranolol can decrease heart rate, it is not the primary instruction to provide in this scenario.
5. A client has a new prescription for metronidazole. The client should avoid which of the following?
- A. Dairy products
- B. Alcohol
- C. Leafy green vegetables
- D. Grapefruit juice
Correct answer: B
Rationale: The correct answer is B: Alcohol. Clients should avoid alcohol while taking metronidazole to prevent a disulfiram-like reaction, which can cause symptoms such as nausea, vomiting, headache, and flushing. Alcohol can interact with metronidazole and lead to adverse effects. Choices A, C, and D are not typically contraindicated with metronidazole. Dairy products, leafy green vegetables, and grapefruit juice do not have significant interactions with metronidazole, unlike alcohol.
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