Correct Answer: A

Rationale: Administering oxygen is the initial action for a healthcare provider when a patient presents with shortness of breath because it helps alleviate the patient's symptoms by improving oxygenation. Providing oxygen takes precedence over other actions such as repositioning the patient, checking for abnormal breath sounds, or assessing oxygen saturation. While these actions are important, ensuring the patient has an adequate oxygen supply is crucial in the initial management of shortness of breath.

Correct Answer: C

Rationale: The correct intervention for a client with Alzheimer's disease who demonstrates confusion and wandering behavior is to ensure that the client wears an identification bracelet at all times. This helps prevent wandering and ensures the client's safety. Placing the client in a well-lit area may be beneficial for orientation but does not directly address wandering behavior. Using physical restraints is not recommended as it can lead to agitation and other complications. Keeping the client's bed in the lowest position is important for fall prevention but does not specifically address the issue of wandering behavior.

Correct Answer: B

Rationale: Tracheal deviation is the correct finding to report to the provider. It can indicate a pneumothorax, which is a serious complication following a thoracentesis that requires immediate attention. Oxygen saturation of 96% is within the normal range and does not indicate an immediate issue. A pain level of 4 on a scale of 0 to 10 is subjective and may not be related to a serious complication. A temperature of 37.4°C (99.3°F) is slightly elevated but not a priority over tracheal deviation in this context.

Correct Answer: B

Rationale: The correct answer is to monitor the client's respiratory rate. This assessment is crucial in the postoperative period to detect any respiratory complications such as hypoxia or respiratory distress. Assessing pain level (Choice A) is important but may not be the top priority as respiratory status takes precedence. Measuring blood pressure (Choice C) is also important but not as critical immediately postoperatively as monitoring respiratory function. Checking bowel sounds (Choice D) is relevant for assessing gastrointestinal function but is typically not the top priority in the immediate postoperative phase.

Correct Answer: C

Rationale: Encouraging the client to ambulate as soon as possible is essential in preventing complications like deep vein thrombosis post knee arthroplasty. While keeping the affected leg elevated and applying ice packs can be beneficial in certain situations, early ambulation takes precedence in this case. Performing range-of-motion exercises hourly may not be necessary and could potentially cause more harm than good if not done correctly or excessively.