ATI RN
Peripheral Nervous System Drugs Questions
Question 1 of 5
Which of the following drugs would be most appropriate for the 49-year-old woman complaining of difficulty sleeping?
Correct Answer: C
Rationale: The correct answer is C: Eszopiclone. Eszopiclone is a non-benzodiazepine hypnotic commonly used to treat insomnia. It is suitable for the 49-year-old woman experiencing difficulty sleeping as it helps initiate and maintain sleep without causing dependence or tolerance issues. Flunitrazepam (A) is a benzodiazepine with high potential for abuse and dependence. Buspirone (B) is an anxiolytic drug, not specifically indicated for insomnia. Fluoxetine (D) is an antidepressant, which may not directly address the sleep issue. Therefore, Eszopiclone is the most appropriate choice for treating the woman's sleep problem.
Question 2 of 5
Which of the following drugs would be contraindicated for inclusion in his anesthetic protocol?
Correct Answer: A
Rationale: The correct answer is A: Halothane. Halothane is contraindicated in patients with a history of malignant hyperthermia, a rare but life-threatening condition triggered by certain anesthetics. Using halothane in such patients can lead to a dangerous reaction. Fentanyl (B), Lorazepam (C), and Thiopental (D) do not have the same risk of triggering malignant hyperthermia and are commonly used in anesthesia protocols. Therefore, Halothane is the only drug in the options that would be contraindicated in this scenario.
Question 3 of 5
Which of the following local anesthetics would be most appropriate for a pregnant woman with a history of anaphylactic reaction to para-aminobenzoic acid (PABA)?
Correct Answer: C
Rationale: The correct answer is C: Lidocaine. Lidocaine is an amide-type local anesthetic that does not contain PABA, making it suitable for a patient with a history of anaphylactic reaction to PABA. Procaine (A) is an ester-type local anesthetic that metabolizes into PABA. Tetracaine (B) is also an ester-type local anesthetic that may cross-react with PABA. Benzocaine (D) is a para-aminobenzoic acid derivative and should be avoided in patients with a history of anaphylaxis to PABA.
Question 4 of 5
Which of the following drugs was most likely administered to achieve muscle relaxation in the 74-year-old man with impaired hepatic and renal function undergoing abdominal surgery?
Correct Answer: C
Rationale: The correct answer is C: Vecuronium. This drug was most likely administered to achieve muscle relaxation in the 74-year-old man with impaired hepatic and renal function undergoing abdominal surgery because it is primarily eliminated through the liver and does not require renal excretion. This makes it a safer choice in patients with impaired hepatic and renal function. Succinylcholine (A) can cause hyperkalemia in renal failure patients. Tubocurarine (B) is eliminated through the kidneys, which can be problematic in renal impairment. Mivacurium (D) is metabolized by plasma cholinesterase, which can be affected in liver dysfunction.
Question 5 of 5
Which of the following muscle relaxants would be contraindicated in a patient with Tubocurarine deficiency of plasma cholinesterase?
Correct Answer: A
Rationale: The correct answer is A: Tubocurarine. Tubocurarine is a non-depolarizing muscle relaxant that works by blocking the action of acetylcholine at the neuromuscular junction. In a patient with Tubocurarine deficiency of plasma cholinesterase, using Tubocurarine as a muscle relaxant would be contraindicated because it would exacerbate the deficiency and lead to prolonged effects. Summary of other choices: B: Cisatracurium - Not contraindicated in a patient with Tubocurarine deficiency of plasma cholinesterase. C: Baclofen - Acts on spinal cord neurons, not related to neuromuscular junction function. D: Mivacurium - A short-acting non-depolarizing muscle relaxant, not contraindicated in this scenario.