36 results
Causes of Frequency, Nocturia, Polyuria

#Frequency #Nocturia #Polyuria #Causes #Differential #Urology #Table
Causes of Frequency ... , Nocturia, Polyuria ... #Frequency #Nocturia ... #Polyuria #Causes ... Differential #Urology #Table
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Causes of Polyuria ... gliflozins) • Other: Mannitol ... Hypercalcemia Polyuria ... Mimics (↑ urine frequency ... Differential #Diagnosis #Causes
Polyuria - Differential Diagnosis
Solute Diuresis
 • Na intake/saline
 • Glucosuria: Hyperglycemia, SGLT-2 inhibitors
 • Urea: Exogenous
Polyuria - Differential ... Resolution of AKI • Mannitol ... @kdjhaveri #Polyuria ... Differential #Diagnosis #Causes
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
Causes of Polyuria ... Differential Diagnosis Algorithm ... Mellitus) • Mannitol ... Differential #Diagnosis #Algorithm ... #Causes
Increased Urinary Frequency - Differential Diagnosis Algorithm
Non-increased urine volume (<2mL/min), Rule out polyuria
Extrinsic to Urinary Tract:
Increased Urinary Frequency ... Differential Diagnosis Algorithm ... min), Rule out polyuria ... alcohol #Urinary #Frequency ... #Causes
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... Differential Diagnosis Algorithm ... diuresis (see Polyuria ... scheme) e.g., mannitol ... #Causes
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
 • Primary
Polyuria - Differential ... Diagnosis Algorithm ... solute load #Polyuria ... Differential #Diagnosis #Algorithm ... #causes #nephrology
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Amphotericin B - Polyuria ... Low #Potassium #Table ... Classification #Causes
Algorithmic Approach to Acute Interstitial Nephritis
When to suspect AIN? (not sensitive)
 • AKI, AKD, rapidly progressive
Algorithmic Approach ... • UA: sterile pyuria ... , WBC casts, eosinophiluria ... proteinuria, granular casts ... Nephritis #AIN #Algorithm
Atraumatic Collapsed Athlete - Suggested Algorithm for Collapsed Athlete

In this review, the authors review that the
Athlete - Suggested Algorithm ... the most common causes ... quickly reversible causes ... The non-cardiac causes ... include (in order of frequency