ATI RN
ATI Pharmocology Exam Fletcher NRSG 106 Questions
Extract:
Question 1 of 5
During the immediate postoperative period, the Post Anesthesia Care Unit nurse is assessing a patient who had hip surgery. The patient is experiencing tachycardia, tachypnea, and muscle rigidity, and his temperature is 103°F (39.4°C). The nurse will prepare for what immediate treatment?
Correct Answer: A
Rationale: The correct answer is A: Dantrolene injection, a skeletal muscle relaxant. The patient is exhibiting signs of malignant hyperthermia (MH), a potentially life-threatening complication of anesthesia. Dantrolene is the definitive treatment for MH as it inhibits calcium release from the sarcoplasmic reticulum, preventing muscle rigidity and hyperthermia. CPR and intubation (
B) are not indicated as the patient's airway and circulation are currently stable. An anticholinesterase drug like neostigmine (
C) would exacerbate muscle rigidity in MH. Naltrexone hydrochloride (
D) is used for opioid reversal, which is not relevant in this scenario.
Question 2 of 5
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Question 3 of 5
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Question 4 of 5
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Question 5 of 5
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