ATI RN
ATI Pharmacology Proctored Exam
1. A client in the operating room received a dose of Succinylcholine, leading to muscle rigidity and a sudden rise in body temperature. The nurse should anticipate a prescription for which of the following medications?
- A. Neostigmine
- B. Naloxone
- C. Dantrolene
- D. Vecuronium
Correct answer: C
Rationale: Muscle rigidity and a sudden rise in temperature are indicative of malignant hyperthermia, a potential complication of succinylcholine. Dantrolene is the drug of choice to treat malignant hyperthermia as it acts on skeletal muscles to reduce metabolic activity and counteract the symptoms. Neostigmine (Choice A) is used to reverse the effects of non-depolarizing neuromuscular blocking agents, not for malignant hyperthermia. Naloxone (Choice B) is an opioid antagonist used for opioid overdose. Vecuronium (Choice D) is a non-depolarizing neuromuscular blocking agent and is not the appropriate medication for malignant hyperthermia.
2. A client has a new prescription for nitroglycerin transdermal patches. Which of the following instructions should the nurse include?
- A. Apply the patch to a different location each day.
- B. Remove the patch every night before bedtime.
- C. Massage the patch area gently after application.
- D. Shave the area before applying the patch.
Correct answer: B
Rationale: The correct instruction for a client using nitroglycerin transdermal patches is to remove the patch every night before bedtime. This practice helps prevent tolerance to the medication's effects. Continuous exposure to nitroglycerin can result in the body becoming less responsive to its therapeutic effects over time, reducing its efficacy in managing the prescribed condition. Choices A, C, and D are incorrect. Applying the patch to a different location each day does not address the issue of tolerance. Massaging the patch area gently after application is not recommended as it may alter drug absorption. Shaving the area before applying the patch is unnecessary and may increase the risk of skin irritation.
3. When administering IV Acyclovir to a client with Varicella, what action should the nurse take?
- A. Administer a stool softener
- B. Decrease fluid intake following infusion
- C. Infuse Acyclovir over 1 hr
- D. Monitor for hypotension
Correct answer: C
Rationale: When administering IV Acyclovir to a client with Varicella, the nurse should infuse the medication over at least 1 hour to prevent nephrotoxicity. Rapid infusion can lead to adverse effects such as renal damage. Therefore, it is crucial to follow the recommended infusion rate to ensure the client's safety and well-being. Choice A is incorrect as stool softeners are not indicated in this situation. Choice B is incorrect because fluid intake should be maintained or increased to prevent dehydration and support kidney function. Choice D is incorrect as monitoring for hypotension is not specifically related to the administration of IV Acyclovir in Varicella.
4. A patient is prescribed warfarin therapy for an artificial heart valve. Which of the following laboratory values should the nurse monitor for a therapeutic effect of warfarin?
- A. Hemoglobin
- B. Prothrombin time (PT)
- C. Bleeding time
- D. Activated partial thromboplastin time (aPTT)
Correct answer: B
Rationale: The correct answer is to monitor Prothrombin time (PT) when a patient is on warfarin therapy. Warfarin affects blood clotting, and PT is used to assess the therapeutic effect of this medication. Hemoglobin (Choice A) is not directly affected by warfarin therapy and does not reflect its therapeutic effect. Bleeding time (Choice C) measures the time it takes for bleeding to stop after a standardized cut and is not specific to warfarin therapy. Activated partial thromboplastin time (aPTT) (Choice D) is more commonly used to monitor heparin therapy, not warfarin.
5. A client has a new prescription for Furosemide. Which of the following instructions should be included by the nurse?
- A. Take this medication at bedtime.
- B. Avoid eating foods high in potassium.
- C. Change positions slowly.
- D. Take this medication with meals.
Correct answer: C
Rationale: The correct instruction to include when a client is prescribed Furosemide is to change positions slowly. Furosemide is a diuretic that can lead to orthostatic hypotension, causing dizziness and increasing the risk of falls. By advising the client to change positions slowly, the nurse helps prevent these potential adverse effects.
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