42 results
Water Deprivation Test - Differential Diagnosis of Diabetes Insipidus (DI)
Concept of WDT: endogenous vasopressin secretion is
Deprivation Test - Differential ... Diagnosis of Diabetes ... Insipidus (DI) ... #Insipidus #DI ... #Diagnosis #algorithm
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Hypernatremia Differential ... Diagnosis Algorithm ... - Diabetes Insipidus ... Algorithm #Sodium #nephrology ... #insipidus #DI
Two-step Copeptin algorithm for differential diagnosis of Diabetes Insipidus (DI)

Baseline Copeptin < 21.4 pmol/L:
 • Arginine-stimulated
algorithm for differential ... diagnosis of Diabetes ... #copeptin #nephrology ... #differential # ... diagnosis
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
of Polyuria - Differential ... Diagnosis Excess ... Diabetes Insipidus ... • Nephrogenic DI ... #nephrology
Central vs Nephrogenic Diabetes Insipidus - Desmopressin Challenge
Give desmopressin (intranasal, SQ, IV) and monitor UOsm every
vs Nephrogenic Diabetes ... #Nephrogenic #Diabetes ... #Insipidus #DI ... Desmopressin #Challenge #diagnosis ... #nephrology #testing
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Hypernatremia - Differential ... Diagnosis Inadequate ... • Nephrogenic diabetes ... #Diagnosis #Causes ... #nephrology #sodium
Causes of Peripheral Weakness with Sensory Changes - Differential Diagnosis Algorithm
Radiculopathy:
 • Disc
 • Spondylosis
 •
Sensory Changes - Differential ... Diagnosis Algorithm ... Weakness #Sensory #Neurology ... #Differential # ... Diagnosis #Algorithm
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
 • Primary
Polyuria - Differential ... Diagnosis Algorithm ... • Nephrogenic Diabetes ... #Diagnosis #Algorithm ... #causes #nephrology
Hypophosphatemia - Differential Diagnosis Algorithm
 • Decreased intake/absorption: Starvation, Alcoholism, Malabsorption, Phosphate binder use
 • Redistribution/
Hypophosphatemia - Differential ... Diagnosis Algorithm ... Post transplant, Diabetes ... #Diagnosis #Algorithm ... #causes #nephrology
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
of Polyuria - Differential ... Diagnosis Algorithm ... #Polyuria #Nephrology ... #Differential # ... Diagnosis #Algorithm