52 results
Polyuria - Differential Diagnosis Algorithm
Polyuria = >3L Urine output / 24 hours
Urine osmolality = 2 (Na
Polyuria - Differential ... Diagnosis Algorithm Polyuria ... solute intake (e.g ... Primary Polydipsia #Polyuria ... Diagnosis #Algorithm #nephrology
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
 • Primary
Polyuria - Differential ... Osm <100 mOsm/kg ... solute load #Polyuria ... Diagnosis #Algorithm #causes ... #nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... Osmolality > 300 mmol/kg ... diuresis (see Polyuria ... Hypernatremia #Nephrology ... Diagnosis #Algorithm #Causes
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
Causes of Polyuria ... Diagnosis Algorithm Polyuria ... concentration (e.g ... #Nephrology #Differential ... Diagnosis #Algorithm #Causes
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Causes of Polyuria ... SGLT2 inhibitors (e.g ... Hypercalcemia Polyuria ... Differential #Diagnosis #Causes ... #nephrology
Simplified Approach to Acute Kidney Injury (AKI)
1) IS THIS AN EMERGENCY? 
Is there a dialysis indication
dialysis indication (e.g ... require urgent nephrology ... are caused by prerenal ... CONSIDER INTRINSIC CAUSES ... workup #diagnosis #nephrology
Causes of Chronic Kidney Disease - Differential Diagnosis Algorithm
Decreased kidney function (eGFR < 60 ml/min/1.73 m2)
Causes of Chronic ... Interstitial (Sterile pyuria ... , WBC casts, eosinophiluria ... KidneyDisease #Nephrology ... Diagnosis #Algorithm #Causes
Algorithmic Approach to Acute Interstitial Nephritis
When to suspect AIN? (not sensitive)
 • AKI, AKD, rapidly progressive
• UA: sterile pyuria ... , WBC casts, eosinophiluria ... proteinuria, granular casts ... AIN #Algorithm #nephrology
Common causes of Acute Kidney Injury AKI - Differential Diagnosis
HEMODYNAMIC
 • Cardiac failure: Impaired forward flow,
Common causes of ... vasoconstriction (e.g ... AIN) • Drugs (e.g ... NephroP #AKI #causes ... Differential #Diagnosis #nephrology
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Reflex Testing - Causes ... Deep coma (any cause ... polyneuropathy (e.g ... Hyperreflexia #Testing #Causes ... diagnosis #table #neurology