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
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2
Q

Causes: CNS

A
Tumor
Trauma
Infection
Stroke/ Cerebrovascular accident
SAH
Guillian Barre
Multiple Sclerosis
Delirum tremens
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3
Q

Causes Pulmonary

A
Tumor
pneumonia
COPD
Lung abscess
TB
Cystic Fibrosis
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4
Q

Causes Carcinoma

A
Lung
Thymoma
pancreatic
ovarian
lymphoma
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5
Q

SIADH DDx

A

Nephrogenic SIADH:Hereditary ADH receptor abnormality

Exogenous vassopressin

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