EndocrinologyRenal
SIADH (Endocrine Perspective)
Schwartz-Bartter criteria, identify cause (CNS, pulmonary, drugs, malignancy), fluid restriction, salt + urea, tolvaptan.
Source: European Hyponatraemia Guidelines 2014
Step 1 of ~3
info
Schwartz-Bartter Criteria for SIADH
ALL of:
• Hyponatraemia (Na <135) with hypo-osmolality (<275 mOsm/kg).
• Inappropriately concentrated urine (osmolality >100 mOsm/kg).
• Urine sodium >30 mmol/L (without diuretic use).
• Euvolaemia clinically.
• Normal renal, adrenal, thyroid function.
• No recent diuretic use.
If criteria met → identify cause.
Related
Curated clinical cross-links plus same-class fallbacks.
Drugs
- Nitric Oxide (Inhaled — iNO) · Selective Pulmonary Vasodilator
- Tolvaptan · V2-Receptor Antagonist (Vasopressin Antagonist)
- Selexipag · Pulmonary Arterial Hypertension
- Macitentan · Pulmonary Arterial Hypertension
- Emollients, urea-containing · Topical emollient (urea, keratolytic)
- Aluminium Chloride Hexahydrate · Antiperspirant (Aluminium Salt)
Pathways
- Diabetic Ketoacidosis (DKA) · JBDS 2013 / Joint British Diabetes Societies; NICE NG17
- Adult Hypoglycaemia (Treated Diabetes) · JBDS-IP (2023): Hospital Management of Hypoglycaemia
- Adrenal Crisis · Society for Endocrinology Emergency Guidance (2024)
- Type 2 Diabetes Management · NICE NG28 2022
- Hyperthyroidism Management · BTA / ETA 2018
- Adrenal Insufficiency · Society of Endocrinology / ESE 2016
Decision support only. Always apply local guidelines and clinical judgement.