SIADH Causes and Diagnosis : Mnemonics

Causes of SIADH

Mnemonic: SIADH

1. Small cell lung tumors
2. Infection
3. Abscess
4. Drugs (carbamazepine and antipsychotics)
5. Head injury

Diagnosis and Diagnostic Criteria

Mnemonic: SOD-IUN TEA

1. Serum Osmolarity Decreased (<280 mOsm/kg H2O)
2. Increased Urine Na (>40 mmol/L) and osmolarity (>100 mOsm/kg H2O)
3. Thyroid function – Normal TSH
4. Euvolemia
5. Adrenal function – Normal cortisol