PN Exit Exam 2023 Quizlet

Correct Answer: B

Rationale: Elevating the head of the bed to 30-45 degrees is a critical step in preventing ventilator-associated pneumonia (VAP) because it helps reduce the risk of aspiration, which is a significant factor in the development of VAP. Elevating the head of the bed enhances pulmonary hygiene, decreases the risk of microaspiration, and promotes better lung function. Performing oral care with chlorhexidine is essential for oral hygiene but is not specifically aimed at preventing VAP. Administering prophylactic antibiotics without a clear indication can lead to antibiotic resistance and is not a recommended routine practice to prevent VAP. Changing the ventilator circuit daily is essential for infection control but is not the most critical step in preventing VAP.

Correct Answer: A

Rationale: According to the principle of asepsis, the one-inch border around the edges of a sterile field set up in the operating room is considered non-sterile, while the central area remains sterile. Therefore, the PN should consider the situation described in choice A to be sterile. Choice B is incorrect because a glove that may have touched hair is contaminated. Choice C is incorrect as a sterile item placed on a damp surface is considered contaminated. Choice D is incorrect as a sterile kit set up at the PN's waist level is prone to contamination.

Correct Answer: B

Rationale: Inspecting the legs for infection or trauma is the priority to assess the cause of the pain and edema, which could indicate deep vein thrombosis or cellulitis. Checking for signs of infection or trauma is crucial in this scenario to rule out potentially serious conditions. Obtaining a blood alcohol test, completing a mental status exam, or inquiring about dietary salt intake can be considered after addressing the immediate concern of identifying any infection or trauma in the leg.

Correct Answer: C

Rationale: Darbepoetin alfa is used to stimulate red blood cell production in clients with CKD. Monitoring hemoglobin levels is essential to assess the effectiveness of the treatment and to adjust the dosage to avoid complications such as hypertension or thrombosis. Monitoring calcium (Choice A), phosphorus (Choice B), or white blood cell count (Choice D) is not directly related to the effectiveness of darbepoetin alfa in treating anemia associated with CKD.

Correct Answer: D

Rationale: The correct answer is D. TENS works by delivering a mild electrical stimulus that can block pain signals from reaching the brain, effectively reducing the perception of pain. Choice A is incorrect because TENS does not distract from pain but rather interferes with pain signals. Choice B is incorrect as TENS does not involve infusing medication into the spinal canal. Choice C is also incorrect because TENS does not target the cerebral cortex to dull pain perception but rather works at the level of nerve conduction.