A nurse is caring for a client who has kidney cancer and has been informed that it has metastasized. Which of the following statements should the nurse make when the client asks what metastasis means?

Choice A reason: Decreasing the IV fluid infusion rate and limiting oral fluid intake may not be appropriate without further assessment, as the client's BUN level is elevated, which could indicate dehydration or renal impairment. The normal range for BUN is typically 7-20 mg/dL.

Choice B reason: Collecting a urine specimen for culture and sensitivity may be necessary if there is a suspicion of infection, but there is no indication of infection based solely on the provided lab values.

Choice C reason: Evaluating urine for amount and specific gravity can help assess the client's hydration status and kidney function, which is pertinent given the elevated BUN level and ongoing nausea and vomiting.

Choice D reason: Continuing routine care may not be appropriate because the BUN level is above the normal range, indicating that further assessment and intervention may be necessary.

Choice A reason: A distended bladder can cause low back pain due to the pressure and stretching of the bladder wall, which is often related to a urinary disorder such as urinary retention or obstruction.

Choice B reason: A stress fracture is less likely to be the cause of low back pain associated with an inability to void and a distended bladder.

Choice C reason: Nerve root pain typically presents with radiating pain down the leg rather than low back pain associated with urinary symptoms.

Choice D reason: Renal cancer could potentially cause low back pain, but it would not typically cause an inability to void or a distended bladder without other significant symptoms.