ATI RN
ATI Pharmacology Proctored Exam
1. A preschooler weighing 44 lb is to receive Amoxicillin 20 mg/kg/day PO divided equally every 12 hr. The available amoxicillin suspension is 250 mg/5 mL. How many mL should the nurse administer per dose?
- A. 4 mL
- B. 5 mL
- C. 6 mL
- D. 3 mL
Correct answer: A
Rationale: To calculate the dosage per administration: First, convert the weight to kg (44 lb / 2.2 lb/kg = 20 kg). Then, calculate the required dosage per dose: (20 mg/kg/day x 20 kg) / 2 (for every 12 hr dosing) = 200 mg per dose. To determine the mL per dose, divide the required dosage by the concentration of the amoxicillin suspension: (200 mg / 250 mg) x 5 mL = 4 mL per dose. Therefore, the correct answer is 4 mL. Choice B (5 mL) is incorrect because the correct calculation yields 4 mL. Choices C (6 mL) and D (3 mL) are also incorrect as they do not align with the accurate calculation based on the provided information.
2. Which of the following conditions is not treated with epinephrine?
- A. Renal disease
- B. Asthma
- C. Hypotension
- D. Glaucoma
Correct answer: A
Rationale: Epinephrine is not used to treat renal disease. Epinephrine is commonly used to treat conditions like asthma, hypotension, and glaucoma, but it is not an appropriate treatment for renal disease. Renal disease requires specific management strategies that do not involve the use of epinephrine.
3. A client has a new prescription for Ondansetron. Which of the following statements should the nurse include?
- A. Take the medication 30 minutes before chemotherapy.
- B. Expect your urine to turn orange.
- C. Increase your intake of high-fiber foods.
- D. Avoid drinking grapefruit juice.
Correct answer: A
Rationale: The correct answer is A: 'Take the medication 30 minutes before chemotherapy.' Ondansetron, an antiemetic, should be taken before chemotherapy to prevent nausea and vomiting. Taking it 30 minutes before chemotherapy ensures the medication is most effective in controlling chemotherapy-induced nausea and vomiting. Choices B, C, and D are incorrect. Option B is unrelated to Ondansetron, option C is not necessary for this medication, and option D does not interact with Ondansetron but is relevant for other medications.
4. A healthcare provider is reviewing the health history of a client who is starting therapy with tamoxifen. The healthcare provider should recognize that tamoxifen is contraindicated in which of the following clients?
- A. A client with a history of deep-vein thrombosis
- B. A client with a history of migraine headaches
- C. A client with a history of hypertension
- D. A client with a history of anemia
Correct answer: A
Rationale: Tamoxifen is contraindicated in clients with a history of thromboembolic events, such as deep-vein thrombosis, due to the increased risk of blood clots. The estrogenic effects of tamoxifen can further increase the risk of thromboembolic events, making it unsafe for individuals with a history of deep-vein thrombosis. Choice B (migraine headaches), Choice C (hypertension), and Choice D (anemia) are not contraindications for tamoxifen therapy. Migraine headaches, hypertension, and anemia do not pose the same risk of adverse effects related to blood clot formation as deep-vein thrombosis does.
5. A client has a new prescription for Metronidazole to treat an infection. Which of the following instructions should the nurse include?
- A. Avoid alcohol while taking this medication.
- B. Take this medication on an empty stomach.
- C. Increase your intake of dairy products while taking this medication.
- D. Avoid direct sunlight while taking this medication.
Correct answer: A
Rationale: The correct instruction is to avoid alcohol while taking Metronidazole. This is crucial to prevent a disulfiram-like reaction, which can result in severe nausea and vomiting. Alcohol should be avoided for at least 48 hours after completing the medication course as well. Choice B is incorrect because Metronidazole can be taken with food to reduce gastrointestinal side effects. Choice C is incorrect because there is no need to increase dairy product intake while on Metronidazole. Choice D is incorrect because there is no specific instruction to avoid direct sunlight while taking this medication.
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