ATI LPN
Perioperative Care Fundamentals Practice Questions Quizlet Questions
Question 1 of 5
In the past, MH mortality ranged up to 80%, but the immediate infusion of dantrolene (Dantrium) and proper treatment have reduced the death rate to about 7%. What is dantrolene's mechanism of action that reverses the hypermetabolic state and crisis?
Correct Answer: B
Rationale: Choice B as dantrolene relaxes muscles, halting MH. Choices A, C, and D are incorrect. This guides perioperative nursing crisis response.
Question 2 of 5
Select the positioning devices and accessories commonly used for bariatric surgery.
Correct Answer: A
Rationale: Choice A as air-assisted devices ease bariatric transfers. Choices B, C, and D are less specific. This enhances safety, a perioperative nursing priority.
Question 3 of 5
The instrument devices depicted below are designed to ligate, divide, resect, suture, and anastomose tissue. They are commonly called:
Correct Answer: D
Rationale: Choice D as mechanical staplers perform these functions. Choices A, B, and C are inaccurate. This speeds surgery, a perioperative nursing support.
Question 4 of 5
Which action will the nurse need to do when preparing to assist with the insertion of a pulmonary artery catheter?
Correct Answer: D
Rationale: Choice D as cardiac monitoring detects dysrhythmias during catheter insertion through the heart. Troponin (choice A) isn't required, auscultation (choice B) occurs post-insertion, and NPO (choice C) isn't needed without anesthesia. This preparation ensures safety per NCLEX physiological integrity, allowing real-time response to complications during this invasive procedure.
Question 5 of 5
Four hours after mechanical ventilation is initiated for a patient with chronic obstructive pulmonary disease (COPD), the patient's arterial blood gas (ABG) results include a pH of 7.51, PaO₂ of 82 mm Hg, PaCO₂ of 26 mm Hg, and HCO₃ of 23 mEq/L (23 mmol/L). The nurse will anticipate the need to
Correct Answer: D
Rationale: Choice D as respiratory alkalosis (pH 7.51, PaCOâ‚‚ 26 mm Hg) from over-ventilation requires a lower rate. Increasing FIOâ‚‚ (choice A), volume (choice B), or rate (choice C) worsens alkalosis. This aligns with NCLEX physiological integrity, adjusting ventilation to normalize ABGs in COPD care.