ATI RN
ATI Pharmacology Proctored Exam 2023
1. A client with Graves' disease is being taught about her prescribed medications. Which of the following statements by the client indicates an understanding of the use of Propranolol in the treatment of Graves' disease?
- A. Propranolol helps increase blood flow to my thyroid gland.
- B. Propranolol is used to prevent excess glucose in my blood.
- C. Propranolol will decrease my tremors and fast heart rate.
- D. Propranolol promotes a decrease in thyroid hormone in my body.
Correct answer: C
Rationale: The correct answer is C. Propranolol is a beta-adrenergic antagonist that helps decrease heart rate and control tremors in individuals with Graves' disease. It does not increase blood flow to the thyroid gland (choice A), prevent excess glucose in the blood (choice B), or directly decrease thyroid hormone levels in the body (choice D). Propranolol's primary role in Graves' disease is to alleviate symptoms like tremors and fast heart rate by blocking the effects of excessive thyroid hormone, rather than reducing the actual levels of thyroid hormone in the body.
2. A client has a new prescription for Levothyroxine to treat hypothyroidism. Which of the following instructions should be included in the teaching?
- A. Take this medication with food.
- B. Take this medication at bedtime.
- C. Expect to see results in 1 week.
- D. Do not discontinue the medication without consulting the provider.
Correct answer: D
Rationale: The correct instruction for a client with a new prescription for Levothyroxine to treat hypothyroidism is not to discontinue the medication without consulting the provider. Abrupt cessation could lead to the return of hypothyroid symptoms, emphasizing the importance of medical guidance when considering any changes to the treatment plan. Choice A is incorrect because Levothyroxine should be taken on an empty stomach, typically in the morning. Choice B is incorrect as it contradicts the timing of administration for Levothyroxine. Choice C is inaccurate as it usually takes a few weeks for the full effects of Levothyroxine to be seen, not just 1 week.
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. A healthcare provider is educating a client who has a prescription for Theophylline. Which of the following instructions should the healthcare provider include?
- A. Avoid caffeine while taking this medication.
- B. You should increase your fluid intake.
- C. Take this medication in the evening.
- D. You may experience increased appetite while on this medication.
Correct answer: A
Rationale: The correct answer is A: 'Avoid caffeine while taking this medication.' Caffeine can increase the risk of theophylline toxicity as it competes for the same metabolic pathways. Consuming caffeine while on theophylline can lead to adverse effects. Choice B is incorrect because although maintaining adequate hydration is important, it is not a specific instruction related to theophylline use. Choice C is incorrect as the timing of the medication administration should be based on the healthcare provider's recommendation and the client's individual needs. Choice D is incorrect as increased appetite is not a common side effect associated with theophylline.
5. When teaching a client with a new prescription for Simvastatin, which instruction should be included?
- A. Take this medication with food.
- B. Avoid drinking grapefruit juice.
- C. Take this medication in the morning.
- D. Increase your intake of potassium-rich foods.
Correct answer: B
Rationale: The correct instruction for a client with a new prescription for Simvastatin is to avoid drinking grapefruit juice. Grapefruit juice can inhibit the metabolism of Simvastatin, leading to increased blood levels of the drug and a higher risk of adverse effects such as muscle pain and liver damage. It is important to educate the client about this potential interaction to ensure the safe and effective use of the medication. Choices A, C, and D are incorrect because taking Simvastatin with food or in the morning and increasing potassium-rich foods intake are not specifically related to the safe use of Simvastatin. Avoiding grapefruit juice is crucial to prevent drug interactions.
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