A 56-year-old patient who is disoriented and reports a headache and muscle cramps is hospitalized with possible syndrome of inappropriate antidiuretic hormone (SIADH).The nurse would expect the initial laboratory results to include a(n)

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When water is retained,the serum sodium level will drop below normal,causing the clinical manifestations reported by the patient.The hematocrit will decrease because of the dilution caused by water retention.Urine will be more concentrated with a higher specific gravity.The serum chloride level will usually decrease along with the sodium level.

A 56-Year-Old Patient Who Is Disoriented and Reports a Headache