ATI RN
ATI Pharmacology Proctored Exam 2019
1. A client reports taking Aspirin about four times daily for a sprained wrist. Which of the following prescribed medications taken by the client is contraindicated with aspirin?
- A. Digoxin
- B. Metformin
- C. Warfarin
- D. Nitroglycerin
Correct answer: C
Rationale: The correct answer is C, Warfarin. Aspirin increases the effect of anticoagulants like warfarin by inhibiting platelet aggregation, leading to an increased risk of bleeding. Therefore, the use of aspirin is generally contraindicated for clients taking warfarin. Choices A, B, and D are not contraindicated with aspirin. Digoxin, Metformin, and Nitroglycerin do not have significant interactions with Aspirin, unlike Warfarin, making them safe to use concomitantly.
2. A client has a new prescription for Lithium Carbonate. When teaching the client about ways to prevent Lithium toxicity, the client should be advised to do which of the following?
- A. Avoid using acetaminophen for headaches.
- B. Restrict intake of foods rich in sodium.
- C. Decrease fluid intake to less than 1,500 mL daily.
- D. Limit aerobic activity in hot weather.
Correct answer: D
Rationale: The correct answer is to advise the client to limit aerobic activity in hot weather. Aerobic activity in hot weather can lead to excessive sweating, potentially causing sodium and water depletion, which can increase the risk of Lithium toxicity. It is important for clients taking Lithium to maintain adequate hydration and sodium levels to prevent toxicity. Choices A, B, and C are incorrect. Avoiding acetaminophen for headaches is not directly related to Lithium toxicity. Restricting intake of foods rich in sodium is not recommended because adequate sodium levels are necessary to prevent Lithium toxicity. Decreasing fluid intake to less than 1,500 mL daily is also not advisable as adequate hydration is important to prevent Lithium toxicity.
3. A healthcare professional is preparing to administer heparin 15,000 units subcutaneously every 12 hours. The available heparin injection is 20,000 units/mL. How many milliliters should the healthcare professional administer per dose?
- A. 0.8 mL
- B. 0.75 mL
- C. 0.5 mL
- D. 1 mL
Correct answer: A
Rationale: To calculate the volume to administer, use the formula: Desired dose / Concentration = Volume to administer. In this case, (15,000 units / 20,000 units/mL) = 0.75 mL. Since the volume needs to be rounded up to the nearest tenth, the correct answer is 0.8 mL. Choice B (0.75 mL) is incorrect because it does not account for rounding up the volume. Choices C (0.5 mL) and D (1 mL) are incorrect as they do not reflect the precise calculation based on the given concentration and desired dose.
4. A client is receiving treatment with etoposide. Which of the following findings should the nurse monitor?
- A. Hypotension
- B. Hyperkalemia
- C. Hyperglycemia
- D. Hypertension
Correct answer: A
Rationale: Etoposide, a chemotherapeutic agent, commonly causes hypotension as an adverse effect. It is crucial for the nurse to monitor the client for signs of hypotension, such as dizziness, lightheadedness, or a drop in blood pressure, to promptly intervene and prevent complications.
5. A client has been on levothyroxine therapy for several months. Which of the following findings indicates a therapeutic response to the medication?
- A. Decrease in level of thyroxine (T4)
- B. Increase in weight
- C. Increase in hours of sleep per night
- D. Decrease in level of thyroid stimulating hormone (TSH)
Correct answer: D
Rationale: A therapeutic response to levothyroxine is indicated by a decrease in the level of TSH. This decrease signifies that the body requires less stimulation to produce thyroid hormone, reflecting a normalization of thyroid function due to the medication's effectiveness. Choices A, B, and C are incorrect as an increase in T4 levels, weight gain, and increased sleep hours are not indicative of a therapeutic response to levothyroxine therapy.
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