ATI RN
ATI Pharmacology Proctored Exam
1. 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 has a long half-life of 4 days, meaning it remains at therapeutic levels in the body for an extended period. Due to this prolonged duration of action, the nurse should expect to administer phenobarbital once a day to maintain therapeutic levels and effectiveness. Administering it more than once a day would lead to unnecessary dosing and potential adverse effects as the medication remains active in the body for an extended period.
2. A client in labor is receiving IV Opioid analgesics. Which of the following actions should the nurse take?
- A. Instruct the client to self-ambulate every 2 hours.
- B. Offer oral hygiene every 2 hours.
- C. Anticipate medication administration 2 hours prior to delivery.
- D. Monitor fetal heart rate every 2 hours.
Correct answer: B
Rationale: When a client is receiving IV Opioid analgesics during labor, the nurse should offer oral hygiene every 2 hours. Opioid analgesics can cause adverse effects like dry mouth, nausea, and vomiting. Providing oral hygiene care helps alleviate these symptoms and maintains the client's comfort and well-being during labor. Instructing the client to self-ambulate every 2 hours is not appropriate during labor as mobility may be limited. Anticipating medication administration 2 hours prior to delivery is not necessary as the timing of medication administration should be based on the client's needs and the progress of labor. Monitoring fetal heart rate every 2 hours is important during labor, but it is not specifically related to the client receiving IV Opioid analgesics.
3. 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.
4. Which of the following drugs has a therapeutic effect that prevents thromboembolic events?
- A. Warfarin
- B. Amlodipine
- C. Nitroglycerin
- D. Clopidogrel
Correct answer: A
Rationale: The correct answer is Warfarin. Warfarin is an anticoagulant medication that helps prevent thromboembolic events by inhibiting the formation of blood clots. It is commonly used to reduce the risk of strokes or heart attacks in patients at risk for thrombosis.
5. A client has a new prescription for Albuterol and Beclomethasone inhalers for the control of asthma. Which of the following instructions should the nurse include in the teaching?
- A. Take the albuterol at the same time each day.
- B. Administer the albuterol inhaler prior to using the beclomethasone inhaler.
- C. Use beclomethasone if experiencing an acute episode.
- D. Avoid shaking the beclomethasone before use.
Correct answer: B
Rationale: When a client is prescribed an inhaled beta2-agonist, such as albuterol, and an inhaled glucocorticoid, such as beclomethasone, for asthma control, the beta2-agonist should be administered first. This sequence is important because the beta2-agonist promotes bronchodilation, which enhances the absorption and effectiveness of the glucocorticoid. Instructing the client to administer the albuterol inhaler before using the beclomethasone inhaler ensures optimal therapeutic benefit. Therefore, option B is the correct choice. Option A is incorrect because the timing of albuterol administration may vary based on the prescribed regimen. Option C is incorrect because beclomethasone is a controller medication, not a rescue medication, and should not be used during acute episodes. Option D is incorrect because beclomethasone should be shaken before use to ensure proper dispersion of the medication.
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