Syndrome of Inappropriate ADH secretion Flashcards
1
Q
SIADH Diagnostic criteria
A
hypotonic hyponatraemia Urine Osmolality > Serum (200 mOsmol/kg) Urine Na > 20 Euvolemic No other cause: renal, cardiac, liver, thyroid, adrenal Correctable with water restriction
2
Q
Causes: CNS
A
Tumor Trauma Infection Stroke/ Cerebrovascular accident SAH Guillian Barre Multiple Sclerosis Delirum tremens
3
Q
Causes Pulmonary
A
Tumor pneumonia COPD Lung abscess TB Cystic Fibrosis
4
Q
Causes Carcinoma
A
Lung Thymoma pancreatic ovarian lymphoma
5
Q
SIADH DDx
A
Nephrogenic SIADH:Hereditary ADH receptor abnormality
Exogenous vassopressin