ATI RN
ATI Pharmacology Proctored Exam 2019
1. A healthcare professional is preparing to administer dextrose 5% in water (D5W) 750 mL IV to infuse over 6 hr. How many mL/hr should the IV pump be set to deliver?
- A. 125 mL/hr
- B. 100 mL/hr
- C. 150 mL/hr
- D. 200 mL/hr
Correct answer: A
Rationale: To calculate the flow rate, divide the total volume by the total time: 750 mL / 6 hr = 125 mL/hr. Therefore, the IV pump should be set to deliver 125 mL/hr to infuse D5W 750 mL over 6 hours. Choice B (100 mL/hr) is incorrect because it does not accurately divide the total volume by the total time. Choice C (150 mL/hr) and Choice D (200 mL/hr) are incorrect as they are not the correct flow rates needed to infuse the D5W solution over the specified time period.
2. A client in a long-term care facility has Hypothyroidism and a new prescription for Levothyroxine. Which of the following dosage schedules should the nurse expect for this client?
- A. The client will start at a high dose, and the dose will be tapered as needed.
- B. The client will remain on the initial dosage during the course of treatment.
- C. The client's dosage will be adjusted daily based on blood levels.
- D. The client will start on a low dose, which will be gradually increased.
Correct answer: D
Rationale: The nurse should expect that levothyroxine will be started at a low dose and gradually increased over several weeks. This cautious approach is crucial, especially in older adult clients, to prevent toxicity and ensure optimal therapeutic outcomes for managing hypothyroidism. Choice A is incorrect because starting at a high dose and tapering as needed is not the standard approach for levothyroxine. Choice B is incorrect because the initial dosage is typically adjusted to reach the optimal therapeutic dose. Choice C is incorrect as adjusting the dosage daily based on blood levels is not necessary for levothyroxine, as it has a long half-life and requires time to reach a steady state.
3. A client has a new prescription for Valproic Acid. The client should be informed that which of the following laboratory tests need to be completed periodically? (Select all that apply.)
- A. Thrombocyte count.
- B. Hematocrit.
- C. Amylase.
- D. Liver function tests.
Correct answer: A
Rationale: Valproic acid can lead to thrombocytopenia, making it essential to monitor the client's thrombocyte count periodically. Additionally, valproic acid can cause pancreatitis, necessitating the monitoring of amylase levels. Furthermore, valproic acid carries a risk of hepatotoxicity, requiring regular monitoring of liver function tests.
4. During a unit of whole blood transfusion, a client develops a cough, shortness of breath, elevated blood pressure, and distended neck veins. The healthcare professional should anticipate a prescription for which of the following medications?
- A. Epinephrine
- B. Lorazepam
- C. Furosemide
- D. Diphenhydramine
Correct answer: C
Rationale: In the scenario described, the client is exhibiting signs of fluid overload, which can occur during blood transfusion. Furosemide, a loop diuretic, is commonly prescribed in such situations to help relieve manifestations of circulatory overload by promoting diuresis and reducing fluid volume. Therefore, the correct choice is C - Furosemide. Epinephrine (Choice A) is not indicated for fluid overload but for severe allergic reactions. Lorazepam (Choice B) is a benzodiazepine used for anxiety or sedation, not for fluid overload. Diphenhydramine (Choice D) is an antihistamine often used for allergic reactions, not for fluid overload.
5. A client has a new prescription for Metoprolol. Which of the following instructions should the nurse include?
- A. Take this medication with food.
- B. Monitor for signs of hyperglycemia.
- C. Avoid sudden discontinuation of the medication.
- D. Increase your intake of potassium-rich foods.
Correct answer: C
Rationale: The correct answer is to instruct the client to avoid sudden discontinuation of Metoprolol. Metoprolol is a beta-blocker that should be tapered off gradually to prevent rebound hypertension and other cardiac issues. Abruptly stopping Metoprolol can lead to serious complications, so it is essential for the client to follow the healthcare provider's guidance on discontinuation. Choice A is incorrect because Metoprolol can be taken with or without food. Choice B is incorrect as Metoprolol is not typically associated with causing hyperglycemia. Choice D is also incorrect as there is no need to increase potassium-rich foods specifically due to taking Metoprolol.
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