Correct Answer: A

Rationale: In osteoarthritis, joint pain that improves with rest is a common characteristic due to the relief obtained by reducing weight-bearing on the affected joint. Joint stiffness that improves with movement is more indicative of rheumatoid arthritis, not osteoarthritis. Red, warm joints are typically seen in inflammatory arthritis conditions like rheumatoid arthritis, while systemic inflammation is not a primary feature of osteoarthritis.

Correct Answer: D

Rationale: The correct answer is to evaluate the client's ability to help with repositioning. When caring for a client who had a stroke, assessing their ability to participate in repositioning is crucial for promoting safety and encouraging their involvement in their care. This evaluation helps determine the level of assistance needed and supports the client's autonomy. Option A is incorrect because raising the side rails alone does not address the client's active involvement in repositioning. Option B is incorrect as using assistive devices may be necessary for safe repositioning. Option C is incorrect as discussing preferences is important but does not directly address the client's ability to assist in repositioning.

Correct Answer: B

Rationale: Shortness of breath is a critical finding that can indicate a pulmonary embolism, a severe complication of DVT. This symptom suggests a potential life-threatening situation and requires immediate intervention. Calf tenderness, while common in DVT, is not as urgent as shortness of breath. Elevated blood pressure and a respiratory rate of 18/min are important to assess but are not typically as indicative of a serious complication like a pulmonary embolism.

Correct Answer: B

Rationale: The correct answer is to assist the client to a sitting position. Placing the client in a sitting position helps facilitate easier access during the thoracentesis procedure by allowing gravity to assist in the removal of pleural fluid. Placing the client in a prone, supine, or lateral position would not provide the optimal positioning needed for a thoracentesis and could make the procedure more challenging or uncomfortable for the client.

Correct Answer: D

Rationale: The correct answer is D: Decreased deep tendon reflexes. In myasthenia gravis, muscle weakness is a common manifestation, leading to decreased deep tendon reflexes. Bradycardia (choice A) is not typically associated with myasthenia gravis. Increased muscle strength (choice B) is unlikely as muscle weakness is a hallmark of this condition. Diarrhea (choice C) is not a typical finding in myasthenia gravis.