43 results
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
- Differential ... >50% - Proper kidney ... - Unresponsive Kidney ... • Nephrogenic ... #Nephrology #Differential
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
 • Primary
Polyuria - Differential ... Insipidus • Nephrogenic ... solute load #Polyuria ... #Differential # ... Algorithm #causes #nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
- Differential ... 145 mmol/L High Urine ... diuresis (see Polyuria ... glucosuria Low Urine ... #Nephrology #Differential
Hyponatremia Differential Diagnosis Table

 • Step 1: Correct for hyperglycemia. Corrected Na = [(glucose - 100)/
Hyponatremia Differential ... Diagnosis Table ... Serum Osm • Urine ... #Differential # ... #nephrology #sodium
Polyuria - Differential Diagnosis Algorithm
Polyuria = >3L Urine output / 24 hours
Urine osmolality = 2 (Na
Polyuria - Differential ... Diagnosis Algorithm Polyuria ... Primary Polydipsia #Polyuria ... #Differential # ... Diagnosis #Algorithm #nephrology
Kidney stone type, corresponding urine sediment, urinary risk factors, and associated clinical settings.
#Diagnosis #Nephrology #Urine #Microscopy
Kidney stone type ... corresponding urine ... #Diagnosis #Nephrology ... #Urinary #Kidney ... Composition #Shapes #Table
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
- Differential ... injury, Tumor • Nephrogenic ... Mimics (↑ urine ... #Differential # ... Diagnosis #Causes #nephrology
Hyponatremia - Differential Diagnosis and Evaluation Algorithm
In addition to edema and urine concentration, always consider urine
Hyponatremia - Differential ... addition to edema and urine ... always consider urine ... #Differential # ... Evaluation #Algorithm #nephrology
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
Differential Algorithm ... uric acid: - Urine ... - Urine sodium ... #Differential # ... Algorithm #Diagnosis #Nephrology
Hypo-osmolar Hypotonic HypoNatremia Algorithm (Serum Na+ < 135 meq/L, serum Osm < 275 mosm/kg)
Assess Volume Status,
Status, Check Urine ... Na, Urine Osm ... #Hyponatremia ... Algorithm #Diagnosis #Nephrology ... #Differential #