Correct Answer: A

Rationale: The correct answer is A: A 79-year-old malnourished client on bed rest. This client is at the highest risk for developing decubitus ulcers due to being malnourished and on bed rest, leading to decreased mobility and poor nutrition. This combination puts the client at significant risk for skin breakdown and pressure ulcers. Choice B is incorrect because although obesity is a risk factor for developing pressure ulcers, immobility and poor nutrition are higher risk factors. Choice C is incorrect as incontinence can contribute to skin breakdown but is not as high a risk factor as immobility and poor nutrition. Choice D is incorrect as an ambulatory client, even if diabetic, has better mobility than a bedridden client and is at lower risk for developing decubitus ulcers.

Correct Answer: D

Rationale: In this scenario, the best reinforcement for the nurse to implement is preferred activities or privileges for compliance. Positive reinforcement with privileges is effective in encouraging behavior change in adolescents, including those with intellectual disabilities. Choice A (Candy for successful oral hygiene tasks) may not be suitable as it involves providing a sugary reward, which contradicts the goal of oral hygiene. Choice B (Tokens for each successful oral hygiene task) could be effective but may not be as motivating as preferred activities or privileges. Choice C (Privilege restrictions for refusing oral hygiene tasks) focuses on negative reinforcement, which is not as effective as positive reinforcement in behavior modification.

Correct Answer: D

Rationale: The nurse's legal responsibility is to ensure that informed consent has been obtained by verifying that the client has signed the form and that it is included in the record. Witnessing the consent and signing as a witness is not the nurse's role, as this is typically done by a neutral party. Informing the client of alternatives to the procedure and explaining the procedure in detail are responsibilities of the healthcare provider performing the surgery, not the nurse.

Correct Answer: C

Rationale: A serum creatinine level of 0.3 mg/dL is abnormally low, indicating potential issues with the interpretation of the creatinine clearance test. It is crucial for the nurse to notify the healthcare provider of this result before proceeding with the 24-hour urine collection. Checking urine output, instructing the client to increase fluid intake, or starting the urine collection without consulting the healthcare provider could lead to incorrect test results and misinterpretation of the client's renal function.

Correct Answer: A

Rationale: The correct answer is A: Medication compliance over the past few weeks. In a client with chronic emphysema experiencing acute symptoms, it is crucial to assess medication compliance as it directly impacts symptom control and disease management. Ensuring the client has been adherent to their prescribed medications can provide insights into potential exacerbating factors or the need for adjustments in the treatment plan. Choices B, C, and D are less critical during the initial assessment compared to medication compliance. Recent sleep patterns and rest (choice B) may be relevant but are secondary to ensuring proper medication management. While smoking history (choice C) is important in chronic lung conditions, the immediate focus should be on the current status of medication use. Activity level prior to symptom onset (choice D) is also pertinent but not as crucial as confirming medication compliance to address the acute symptoms.