Classification, Differential Diagnosis, and Features of Hyponatremia According to Volume Status Hypervolemic hypernatremia - CHF - Cirrhosis - Nephrotic syndrome - Acute and chronic kidney disease Normovolemic hyponatremia - Psychogenic polydipsia - Glucocorticoid deficit - Hypokalemia - Drugs - SIADH Renal hypovolemic hyponatremia - Diuretics - Mineralocorticoid deficit - Salt-losing nephropathy Extrarenal hypovolemic hyponatremia - Vomiting - Diarrhea #Hyponatremia #Classification #Differential #Diagnosis #Table #Causes