10 results
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Hypernatremia Differential Diagnosis ... Algorithm - Diabetes ... Insipidus Workup ... #Sodium #nephrology ... #insipidus #DI
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
- Differential Diagnosis ... Workup Algorithm ... Euvolemic: Diabetes insipidus ... #Workup #Algorithm ... #nephrology #sodium
Two-step Copeptin algorithm for differential diagnosis of Diabetes Insipidus (DI)

Baseline Copeptin < 21.4 pmol/L:
 • Arginine-stimulated
Two-step Copeptin algorithm ... for differential diagnosis ... of Diabetes Insipidus ... #DI #algorithm ... #copeptin #nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
- Differential Diagnosis ... Algorithm Hypernatremia ... water loss, Serum Sodium ... kg • Diabetes Insipidus ... Hypernatremia #Nephrology
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Hypernatremia Diagnosis ... and Workup Step ... Repeat the sodium ... #Workup #Algorithm ... #Nephrology
Diabetes Insipidus - Diagnosis Algorithm
Tests:
 • Osmolality, Urine AND/OR
 • Osmolality, Serum or Plasma AND
 •
Diabetes Insipidus ... - Diagnosis Algorithm ... Plasma AND • Sodium ... #Diagnosis #Algorithm ... #nephrology #differential
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
- Differential Diagnosis ... Algorithm Hypovolemic ... , CNS Disease, Meds ... #Algorithm #diagnosis ... #nephrology #sodium
Hypernatremia - Differential Diagnosis and Treatment
Hypernatremia is almost always due to unreplaced water loss (free water
urine osm (in DI ... , Dehydration: neurologic ... post-obstructive 3) Diabetes Insipidus ... Treatment #management #nephrology ... #sodium
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Urinary Chloride Algorithm ... the excretion of sodium ... and potassium acid ... #nephrology #differential ... #diagnosis
Primary Polydipsia
Definition: Excessive volitional water intake
Epidemiology:
 • 6-20% of patients with psychiatric disorders - Most commonly
: Diabetes Insipidus ... intoxication Initial Workup ... Urine Osm, Serum Sodium ... , Urine Sodium ... #management #nephrology