Correct Answer: A

Rationale: Corrected Rationale: Osteoarthritis typically involves the destruction of joint cartilage, leading to pain and stiffness. This destruction of joint cartilage results in bone rubbing against bone, causing pain and reduced mobility. Choices B, C, and D are incorrect. Inflammation of the synovial membrane (choice B) is more commonly associated with rheumatoid arthritis. Formation of bone spurs (choice C) and reduction of joint space (choice D) are manifestations that can occur as a result of osteoarthritis but are not the primary pathology responsible for the symptoms of pain and stiffness.

Correct Answer: D

Rationale: In this situation, the client's capillary refill of 8 seconds is the assessment finding that warrants immediate intervention by the nurse. A capillary refill greater than 3 to 5 seconds indicates poor perfusion, which could be a sign of inadequate circulation and oxygenation. Checking capillary refill is a quick and useful way to assess peripheral perfusion. Bruises on arms and legs may indicate a bleeding disorder but are not as urgent as addressing poor perfusion. A round and tight abdomen could suggest ascites, which is already known in this case. Pitting edema in lower legs is a common finding in malnutrition and ascites but does not require immediate intervention as poor capillary refill does.

Correct Answer: A

Rationale: The correct action for the nurse to take next is to ask for a full explanation from the interpreter of the witnessed discussion. Verbal consent is not sufficient; it is crucial to ensure that the client fully comprehends the risks and benefits of the surgical procedure. By asking the interpreter to provide a detailed explanation of the discussion, the nurse can confirm that the client has given informed consent. Having the client sign the consent form (Choice B) without ensuring complete understanding may lead to potential misunderstandings. Documenting the conversation and witnessing the consent (Choice C) is not enough to guarantee the client's comprehension. Asking the client directly if she has any questions (Choice D) may not be effective if language barriers persist.

Correct Answer: A

Rationale: The correct answer is the medication port. When adding medication to an already infusing IV solution, it should be done through the medication port to ensure direct delivery into the bloodstream without interrupting the primary IV line. Injecting the medication into the IV drip chamber, Y-site connector, or at the hub of the IV catheter can lead to dilution, inaccurate dosing, or potential blockages in the IV line, which can compromise the effectiveness of the medication and patient safety.

Correct Answer: B

Rationale: Obtaining a wound swab for culture and sensitivity is the most important intervention in this situation. It helps identify the presence of infection in the postoperative wound that could be causing the elevated temperature. By obtaining a wound swab, healthcare providers can determine the appropriate treatment needed to address any infection. Initiating contact isolation (Choice A) may be necessary in certain situations but is not the priority in this case. Assessing temperature (Choice C) is important but does not directly address the underlying cause of the elevated temperature. Using alcohol-based solutions for hand hygiene (Choice D) is a standard practice for infection control but is not the most crucial intervention in this scenario.