Correct Answer: A

Rationale: In a client with a three-chamber closed chest tube system, a rise in the water seal chamber with client inspiration is an expected finding. The nurse should continue to monitor the client as this indicates that the system is functioning correctly. There is no need to notify the healthcare provider, reposition the client, or clamp the chest tube as these actions are not indicated in response to a rise in the water seal chamber.

Correct Answer: C

Rationale: Following a total hip arthroplasty, the client should be instructed to restrict hip flexion past 90 degrees to prevent dislocation of the prosthesis. Restricting flexion past 120 degrees is excessive and could lead to complications. Therefore, the nurse should verify this prescription with the provider to ensure the client's safety and proper postoperative care.

Correct Answer: C

Rationale: Ventilator-associated pneumonia (VAP) is a common complication in clients receiving mechanical ventilation. Oral hygiene is crucial in reducing the risk of VAP. Brushing the client's teeth with a suction toothbrush every 12 hours helps prevent bacterial colonization in the oral cavity, which can be aspirated into the lungs. Positioning the head of the bed flat can increase the risk of aspiration. Turning the client every 4 hours is important for preventing pressure ulcers but not directly related to reducing VAP. Providing humidity in the ventilator tubing helps maintain airway moisture but does not directly address the risk of VAP.

Correct Answer: D

Rationale: Pyrazinamide can cause gastrointestinal upset and is best taken with a full glass of water to minimize irritation to the stomach lining. This instruction helps reduce the risk of adverse effects associated with pyrazinamide. Options A and C are not directly related to the medication regimen for tuberculosis. While sputum testing is important, the frequency mentioned in option B is not required every two weeks.

Correct Answer: A

Rationale: In a client with a three-chamber closed chest tube system, a rise in the water seal chamber with client inspiration is an expected finding. The nurse should continue to monitor the client as this indicates that the system is functioning correctly. There is no need to notify the healthcare provider, reposition the client, or clamp the chest tube as these actions are not indicated in response to a rise in the water seal chamber.