Do I have diabetes insipidus given my normal serum sodium and osmolality, and recent laboratory results including a water deprivation test and copeptin level?

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Related Questions

Based on my water‑fasting test results (copeptin 4.6 pg/mL, serum sodium 143 mmol/L, urine osmolality 498 mOsm/kg, serum osmolality 301 mOsm/kg) with normal blood pressure, potassium, calcium, renal function, and no nocturia, do I have diabetes insipidus?
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