prolonged exposure to high concentrations of supplemental oxygen over several days can cause which pathophysiological effect
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Nursing Elites

HESI RN

HESI 799 RN Exit Exam Capstone

1. Prolonged exposure to high concentrations of supplemental oxygen over several days can cause which pathophysiological effect?

Correct answer: B

Rationale: Corrected Rationale: Prolonged exposure to high oxygen concentrations can disrupt the production of surfactant in the lungs, leading to atelectasis and other lung complications. Surfactant is essential for maintaining lung compliance and preventing alveolar collapse. Reduced cardiac output (Choice A) is not directly associated with prolonged oxygen exposure. Hyperactivity of alveoli (Choice C) is not a recognized consequence of high oxygen levels. Increased oxygen carrying capacity (Choice D) is not a pathophysiological effect of prolonged high oxygen exposure.

2. A client is experiencing acute bronchospasm. What is the nurse's priority intervention?

Correct answer: A

Rationale: The correct answer is to administer a nebulizer treatment of albuterol. In acute bronchospasm, the priority intervention is to deliver a bronchodilator like albuterol to open the airways and improve breathing. Starting an IV infusion of normal saline (Choice B) may be necessary but not the priority in this situation. Administering oxygen at 4L/min via nasal cannula (Choice C) is important but not the first intervention for bronchospasm. Positioning the client in a high Fowler's position (Choice D) can help with breathing but is not the priority over administering a bronchodilator.

3. A client with type 1 diabetes reports blurry vision. What is the most important assessment the nurse should perform?

Correct answer: A

Rationale: Blurry vision in clients with type 1 diabetes may indicate hyperglycemia, which requires prompt assessment of recent blood glucose levels to determine the cause and appropriate intervention. Checking the client’s hemoglobin A1C level (Choice B) is useful for assessing long-term glucose control, not for immediate management of blurry vision. Monitoring blood pressure (Choice C) is important in diabetes care but is not the most crucial assessment when blurry vision is reported. Examining the client’s feet for signs of neuropathy (Choice D) is important in diabetic foot care but is not the priority when dealing with blurry vision.

4. A client with a peripherally inserted central catheter (PICC) line has a fever. What client assessment is most important for the nurse to perform?

Correct answer: B

Rationale: Observing the antecubital fossa for inflammation is crucial in clients with a PICC line and fever. Inflammation at the site can indicate infection or complications related to the PICC line. Auscultating lung sounds (choice C) is important but not the priority in this situation. Checking for phlebitis or thrombosis (choice D) is relevant but does not address the immediate concern of identifying infection or complications at the insertion site. Inspecting the PICC insertion site (choice A) is also important but observing the antecubital fossa provides a more direct assessment of potential issues with the PICC line.

5. A client with deep vein thrombosis (DVT) is prescribed heparin therapy. What laboratory value should the nurse monitor?

Correct answer: C

Rationale: The correct answer is C: Monitor the client’s partial thromboplastin time (PTT). During heparin therapy for DVT, it is essential to monitor the PTT to assess the effectiveness of the medication in preventing clot formation. Monitoring the PTT helps ensure that the client is within the therapeutic range for anticoagulation. Choices A, B, and D are incorrect because liver function tests, prothrombin time (PT), and red blood cell count are not specifically monitored to assess the effectiveness of heparin therapy in preventing clot formation.

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