ATI RN
ATI Pharmacology
1. A client is prescribed Metformin. Which of the following laboratory values should be monitored to assess for potential adverse effects?
- A. Blood glucose
- B. Creatine kinase
- C. Hemoglobin A1c
- D. Serum creatinine
Correct answer: D
Rationale: The correct answer is D: Serum creatinine. Metformin can potentially cause lactic acidosis, particularly in patients with impaired renal function. Monitoring serum creatinine levels is crucial to assess kidney function and detect any adverse effects of Metformin on renal health. Choices A, B, and C are incorrect as blood glucose, creatine kinase, and hemoglobin A1c levels are not directly monitored to assess for potential adverse effects of Metformin. Blood glucose monitoring is typically done to assess the efficacy of antidiabetic medications like Metformin, while creatine kinase levels are indicative of muscle damage and hemoglobin A1c reflects long-term blood sugar control.
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. When educating a client prescribed Rifampin, which instruction should the nurse provide?
- A. Expect orange discoloration of urine.
- B. Take the medication with food.
- C. Increase your intake of dairy products.
- D. Discontinue the medication if you experience itching.
Correct answer: A
Rationale: The correct instruction for a client prescribed Rifampin is to expect orange discoloration of urine. Rifampin is known to cause harmless discoloration of bodily fluids, including urine, which is a common side effect of this medication. It is important for the nurse to educate the client about this expected side effect to prevent unnecessary concern or discontinuation of the medication. Choices B, C, and D are incorrect because Rifampin does not require specific dietary considerations like taking it with food or increasing dairy intake. Furthermore, itching is not a common side effect that would necessitate immediate discontinuation of Rifampin.
4. A provider prescribes phenobarbital for a client who has a seizure disorder. The medication has a long half-life of 4 days. How many times per day should the nurse expect to administer this medication?
- A. One
- B. Two
- C. Three
- D. Four
Correct answer: A
Rationale: Phenobarbital, with a long half-life of 4 days, remains at therapeutic levels in the body for an extended period. Due to this prolonged duration of action, the nurse should administer phenobarbital once a day to maintain a consistent therapeutic effect without the need for multiple daily doses. Administering the medication more than once a day would not be necessary and could increase the risk of side effects or toxicity. Therefore, the correct answer is to administer phenobarbital once a day.
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?
- A. 0.2 mL
- B. 0.4 mL
- C. 0.6 mL
- D. 0.8 mL
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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