Correct Answer: D

Rationale: The presence of crackles in both lung bases and an increased respiratory rate indicates fluid overload, which can be exacerbated by hypertonic saline. This condition can worsen the client's respiratory status and lead to further complications. The other options do not directly relate to the fluid overload caused by the hypertonic saline. A serum sodium level of 130 mEq/L is within a normal range for treatment. A headache and a blood pressure of 140/90 are not specific indicators of worsening condition related to hypertonic saline. Shortness of breath and an O2 saturation of 92% could be related to other factors in a client with liver cirrhosis and ascites.

Correct Answer: A

Rationale: The correct answer is A. Anuria for the last 12 hours. Anuria, the absence of urine output, indicates complete kidney failure and is a medical emergency that requires immediate attention. In acute kidney injury (AKI), the kidneys are unable to filter waste from the blood effectively, leading to a buildup of toxins and electrolyte imbalances like elevated blood potassium levels. Tachycardia and hypotension (choice B) can be seen in AKI but do not reflect the urgency of addressing anuria. Decreased urine output (choice C) is concerning but not as critical as the absence of urine production. Elevated blood urea nitrogen (BUN) levels (choice D) are indicative of kidney dysfunction but do not demand immediate action as anuria does.

Correct Answer: A

Rationale: Choice A is the correct answer. Renting movies and borrowing books to use at home indicate that the client understands the need for rest and self-care after chemotherapy. This behavior demonstrates the client's intention to engage in activities that promote relaxation and recovery. Choices B, C, and D are incorrect because making an appointment for follow-up treatment, expressing concern about side effects like hair loss and fatigue, and asking for dietary recommendations are important but do not directly reflect the client's understanding of her immediate care needs post-chemotherapy.

Correct Answer: A

Rationale: The correct answer is to administer oxygen therapy as prescribed. In COPD exacerbation, the priority is to improve oxygenation. Administering oxygen therapy helps ensure an adequate oxygen supply to the body's tissues. Elevating the head of the bed can improve ventilation but is not the first intervention needed in this situation. Obtaining a sputum culture and administering antibiotics are important in COPD exacerbation but come after ensuring proper oxygenation.

Correct Answer: D

Rationale: The presence of crackles in both lung bases and an increased respiratory rate indicates fluid overload, which can be exacerbated by hypertonic saline. This condition can worsen the client's respiratory status and lead to further complications. The other options do not directly relate to the fluid overload caused by the hypertonic saline. A serum sodium level of 130 mEq/L is within a normal range for treatment. A headache and a blood pressure of 140/90 are not specific indicators of worsening condition related to hypertonic saline. Shortness of breath and an O2 saturation of 92% could be related to other factors in a client with liver cirrhosis and ascites.