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, 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.
2. A client has a new prescription for Clopidogrel. Which of the following instructions should the nurse include?
- A. Monitor for signs of bleeding.
- B. Avoid taking the medication with food.
- C. Expect to have increased urination.
- D. Take the medication with an antacid.
Correct answer: A
Rationale: Corrected Rationale: Clopidogrel is an antiplatelet medication that increases the risk of bleeding. The client should monitor for any signs of bleeding, such as easy bruising, prolonged bleeding from cuts, blood in urine or stool, and report them promptly to their healthcare provider for further evaluation and management. Choice B is incorrect because Clopidogrel can be taken with or without food. Choice C is incorrect as increased urination is not a common side effect of Clopidogrel. Choice D is incorrect as taking Clopidogrel with an antacid may reduce its effectiveness.
3. A client has a new prescription for Enfuvirtide to treat HIV infection. The nurse should monitor the client for which of the following adverse reactions?
- A. Bone marrow suppression
- B. Pancreatitis
- C. Pancreatitis
- D. Bone marrow suppression
Correct answer: D
Rationale: While bone marrow suppression is not typically associated with Enfuvirtide, a more relevant concern is the risk of severe allergic reactions such as anaphylaxis. Enfuvirtide, an HIV fusion inhibitor, can cause local injection site reactions and systemic allergic responses. Monitoring for signs of allergic reactions, such as rash, fever, and difficulty breathing, is crucial to ensure the client's safety.
4. A healthcare provider is assessing a client who is taking levothyroxine. The healthcare provider should recognize that which of the following findings is a manifestation of levothyroxine overdose?
- A. Insomnia
- B. Constipation
- C. Drowsiness
- D. Hypoactive deep-tendon reflexes
Correct answer: A
Rationale: Insomnia is a common symptom of levothyroxine overdose due to excessive stimulation of the central nervous system. Levothyroxine is a thyroid hormone replacement medication, and an overdose can lead to hyperthyroidism symptoms, including insomnia. Constipation and drowsiness are not typically associated with levothyroxine overdose. Hypoactive deep-tendon reflexes are more indicative of hypothyroidism rather than an overdose of levothyroxine.
5. Reteplase (Retavase) has been ordered for a client diagnosed with an MI. The nurse understands that this drug needs to be administered within which time frame following the onset of symptoms?
- A. 45 minutes to 18 hours
- B. 30 minutes to 12 hours
- C. 90 minutes to 36 hours
- D. 60 minutes to 24 hours
Correct answer: B
Rationale: Reteplase (Retavase) is a thrombolytic medication used in the treatment of myocardial infarction (MI). It is crucial to administer this drug within 30 minutes to 12 hours following the onset of symptoms to achieve optimal therapeutic effects and improve patient outcomes. Administering Reteplase within this time frame helps in restoring blood flow to the affected areas of the heart by dissolving blood clots, reducing myocardial damage, and potentially preventing further complications associated with MI.
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