ATI RN
ATI Pharmacology
1. 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: Levothyroxine should be initiated at a low dose and titrated gradually over several weeks to achieve therapeutic levels. This approach helps to minimize the risk of adverse effects, particularly in older adult clients who may be more sensitive to medication changes. Starting at a low dose allows for close monitoring of the client's response and adjustment of the dosage as needed to optimize treatment outcomes. Choice A is incorrect because starting at a high dose can increase the risk of adverse effects and is not the recommended approach. Choice B is incorrect because maintaining the initial dosage throughout the treatment may not achieve optimal therapeutic levels. Choice C is incorrect because adjusting the dosage daily based on blood levels is not the standard practice for initiating Levothyroxine treatment.
2. 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.
3. A client will start Alfuzosin for the treatment of Benign Prostatic Hyperplasia. The nurse should instruct the client that which of the following is an adverse effect of this medication?
- A. Bradycardia
- B. Edema
- C. Hypotension
- D. Tremor
Correct answer: C
Rationale: The correct answer is C, Hypotension. Alfuzosin relaxes muscle tone in veins, leading to vasodilation and reduced systemic vascular resistance. This effect can cause hypotension due to decreased cardiac output. Clients should be advised to rise slowly from a sitting or lying position to minimize the risk of orthostatic hypotension. Choices A, B, and D are incorrect because bradycardia, edema, and tremor are not commonly associated adverse effects of Alfuzosin.
4. A client has a new prescription for Cyanocobalamin (Vitamin B12) injections. Which of the following client statements indicates an understanding of the teaching?
- A. I will need to take this medication for the rest of my life.
- B. I will stop taking the medication when my symptoms improve.
- C. I should take this medication with food.
- D. I will need to avoid green, leafy vegetables while taking this medication.
Correct answer: A
Rationale: The correct answer is A. Clients with pernicious anemia or other causes of vitamin B12 deficiency may need to take cyanocobalamin for life to prevent deficiency. It is a lifelong treatment in many cases to maintain adequate B12 levels. Choice B is incorrect because stopping the medication when symptoms improve may lead to a relapse of the deficiency. Choice C is incorrect as cyanocobalamin injections are usually administered on an empty stomach. Choice D is incorrect as there is no need to avoid green, leafy vegetables while taking cyanocobalamin; in fact, these vegetables are good dietary sources of vitamin B12.
5. A client with angina is being taught how to use nitroglycerin transdermal ointment. Which instruction should the nurse include?
- A. Remove the prior dose before applying a new dose.
- B. Rub the ointment directly into the skin until it is no longer visible.
- C. Cover the applied ointment with a clean gauze pad.
- D. Apply the ointment to the same skin area each time.
Correct answer: A
Rationale: The correct instruction is to remove the prior dose before applying a new one to prevent toxicity. Nitroglycerin ointment can cause adverse effects if accumulated doses are not removed. Rubbing the ointment until it's not visible or covering it with gauze may alter absorption. Applying it to the same area each time can lead to skin irritation or desensitization.
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