Correct Answer: B

Rationale: The correct action for the nurse to take is to continue obtaining client data to complete the fall risk survey. Even though the client reports never falling, it is essential to assess all fall risk factors comprehensively. Fall risk surveys provide valuable information on mobility, vision, medications, and other factors that can impact safety. Option A is incorrect because suggesting moving to an assisted living facility is premature without completing the fall risk assessment. Option C is incorrect as reducing the frequency of fall risk assessments could overlook potential risk factors. Option D is incorrect as the client's statement alone is not enough to confirm their safety living alone; a thorough assessment is necessary.

Correct Answer: C

Rationale: An elevated temperature may indicate infection and should be treated immediately in a client with heart failure.

Correct Answer: A

Rationale: The correct answer is to evaluate the closest proximal pulse when assessing tissue perfusion post-above knee amputation (AKA). Checking the closest proximal pulse provides the best indication of tissue perfusion in the extremities after an AKA procedure. Observing the color and amount of wound drainage (Choice B) is important for wound care but does not directly assess tissue perfusion. Observing for swelling around the stump (Choice C) may indicate inflammation or fluid accumulation but is not the most direct way to assess tissue perfusion. Assessing the skin elasticity of the stump (Choice D) is more related to skin integrity and wound healing rather than tissue perfusion.

Correct Answer: D

Rationale: A decrease in respiratory rate indicates that the client's breathing is becoming more stable, which suggests an improvement in their condition. Respiratory rate is a critical indicator of respiratory status and oxygenation. Increased white blood cell count (choice A) suggests ongoing infection, crackles on lung auscultation (choice B) indicate fluid in the lungs, and productive cough with green sputum (choice C) may indicate persistent infection or airway inflammation, which do not necessarily reflect improvement in pneumonia.

Correct Answer: B

Rationale: The correct answer is B: Serum ammonia level. Lactulose is used to lower serum ammonia levels in clients with chronic liver disease, particularly in cases of hepatic encephalopathy. Monitoring serum ammonia levels is crucial to evaluate the effectiveness of lactulose in managing hepatic encephalopathy. Choices A, C, and D are incorrect because they are not directly related to the action or evaluation of lactulose in chronic liver disease.