D2I2.
endocrine

SIADH

of inappropriate antidiuretic secretion (SIADH), also known as the syndrome of inappropriate antidiuresis (SIAD), is characterized by a physiologically inappropriate release of antidiuretic hormone (ADH) either from the pituitary gland, or an ectopic non-pituitary source, such as an ADH-secreting tumor in the lung. Unsuppressed ADH causes a physiologically inappropriate increase in solute-free water being reabsorbed by the tubules of the kidney to the circulation leading to hypotonic hyponatremia.

Underlined words are explained — tap any of them.

Symptoms — what it feels like

  • ·Lack of appetite, , vomiting, pain, and coma
Plain-language summary adapted from Wikipedia. Not medical advice.