Hypo-osmolality or hyponatraemia

Definition

Serum sodium concentrations of less than 135 mEq/L; decreased serum concentration of osmotically active particles

Inclusions

• sodium [na] deficiency

Exclusions

• Syndrome of inappropriate secretion of antidiuretic hormone (5A60.2)

Also indexed as

Nearby in Disorders of fluid, electrolyte or acid-base balance

• 5C70Volume depletion
• 5C71Hyperosmolality or hypernatraemia
• 5C73Acidosis
• 5C74Alkalosis
• 5C75Mixed disorder of acid-base balance
• 5C76Hyperkalaemia
• 5C77Hypokalaemia
• 5C78Fluid overload