A client with untreated diabetes mellitus has polyuria,is lethargic,and has a blood glucose of 560 mg/dL.The nurse correlates the polyuria with which finding?

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Hyperglycemia causes hyperosmolarity of extracellular fluid.This leads to polyuria from an osmotic diuresis.The client's serum osmolarity is high.The client's sodium would be expected to be high owing to dehydration.Urine ketone bodies and serum creatinine are not related to the polyuria.

A Client with Untreated Diabetes Mellitus Has Polyuria,is Lethargic,and Has