Correct Answer: B

Rationale: The correct answer is B because avoiding perfumed lotions is important to prevent skin irritation after radiation therapy. Using a heating pad (A) can further damage the skin, applying cold compresses (C) may not be recommended, and scrubbing the area daily with soap and water (D) can be too harsh on the skin, leading to further irritation and damage.

Correct Answer: A

Rationale: The correct answer is A because the LPN can care for stable clients with complex needs, such as managing an NGT set to continuous suction. Choices B, C, and D involve clients with more acute conditions that require a higher level of assessment and intervention, making them unsuitable for delegation to an LPN. Choice B requires prompt evaluation of the shortness of breath in a client with a recent femur fracture, which is beyond the LPN's scope. Choice C involves a head injury and unequal pupils, indicating the need for neurological assessment and close monitoring. Choice D relates to a critically low hemoglobin level and the need for blood transfusion, requiring careful monitoring and potential intervention beyond the LPN's role.

Correct Answer: A

Rationale: The correct signs and symptoms of Cushing's syndrome are weight gain and a moon face. Corticosteroids are used to manage Cushing's syndrome by reducing the overproduction of cortisol. Choice B is incorrect because hirsutism and thin extremities are not typical signs of Cushing's syndrome. Choice C is incorrect as purple striae and muscle weakness are more characteristic of the syndrome. Choice D is also incorrect as hypertension and bruising are not primary signs of Cushing's syndrome.

Correct Answer: C

Rationale: A prothrombin time (PT) of 12 seconds is below the therapeutic range for warfarin and indicates a need for dosage adjustment. The correct answer is C. A normal International normalized ratio (INR) for a client on warfarin therapy is usually between 2.0 to 3.0; therefore, an INR of 2.5 is within the expected range. A platelet count of 180,000/mm³ is within the normal range (150,000 to 450,000/mm³) and does not require immediate reporting. A partial thromboplastin time (PTT) of 30 seconds is also within the normal range (25-35 seconds) and does not indicate a need for urgent action.

Correct Answer: B

Rationale: The correct answer is B: 'Limit fluid intake to 1-2 liters per day.' For clients with heart failure, fluid restriction is essential to prevent fluid overload. Restricting fluid intake to 1-2 liters per day helps maintain fluid balance and prevents exacerbation of heart failure symptoms. Choices A, C, and D are incorrect because consuming 3 liters, 4 liters, or limiting water intake to 1 liter per day, respectively, can lead to fluid overload in clients with heart failure.