23 results
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
 • Primary
Urine Output > ... Water Diuresis (Urine ... Mixed Diuresis (Urine ... Solute Diuresis (Urine ... #Algorithm #causes
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... - Differential Diagnosis ... 145 mmol/L High Urine ... diuresis (see Polyuria ... glucosuria Low Urine
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
Causes of Polyuria ... - Urine Output ... day, Increased Urine ... Osmotic Diuresis Urine ... polydipsia Hypotonic Urine
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Causes of Polyuria ... - Differential Diagnosis ... of Water: • Primary ... Mimics (↑ urine ... frequency without ↑ urine
Increased Urinary Frequency - Differential Diagnosis Algorithm
Non-increased urine volume (<2mL/min), Rule out polyuria
Extrinsic to Urinary Tract:
- Differential Diagnosis ... Non-increased urine ... min), Rule out polyuria ... #Differential #Diagnosis ... #Algorithm #Causes
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... - Differential Diagnosis ... Hypo-osmolar urine ... suppression • Primary ... #Algorithm #Causes
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... - Differential Diagnosis ... Hypo-osmolar urine ... suppression • Primary ... #Algorithm #Causes
Hyponatremia - Diagnosis and Treatment
Hyponatremia is usually caused by the inability to excrete water normally.
Hyponatremia - Diagnosis ... usually caused by ... Measure urine osmolality ... the underlying cause ... #Differential #Diagnosis
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
- Differential Diagnosis ... test (with 24-h urine ... aldosterone) or IV saline ... #Differential #Diagnosis ... #Workup #table
Management of SIADH
Treat underlying cause:
 • Causes can include pain, primary lung pathology, post-operative phenomenon, medications,
: • Causes can ... include pain, primary ... : • If Urine osmolality ... SIADH #Management #hyponatremia ... #nephrology #treatment