Polyuria
Background
Clinical Features
Differential Diagnosis
Polyuria
- Osmotic diuresis
- Drugs: diuretics, caffeine, acetazolamide, lithium
- Hypercalcemia
- Hypokalemia
- Diabetes insipidus
- Cushing's syndrome, primary hyperaldosteronism
- Inability to concentrate urine (e.g. chronic pyelonephritis, sickle cell disease, amyloidosis
- Post-obstructive diuresis
- Early renal failure
- High fluid intake
- Excess IVF
- Psychogenic polydipsia