19 results
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Hypernatremia Differential ... @ASanchez_PS and ... Eric Strong @DrEricStrong ... Management #Algorithm #Sodium ... #nephrology #insipidus
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
 • Primary
Polyuria - Differential ... Central Diabetes Insipidus ... /kg) • Water and ... Diagnosis #Algorithm #causes ... #nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... - Differential ... water loss, Serum Sodium ... kg • Diabetes Insipidus ... Hypernatremia #Nephrology
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Causes of Polyuria ... - Differential ... Diabetes Insipidus ... - Strong Medicine ... #nephrology
Diabetes Insipidus - Diagnosis Algorithm
Tests:
 • Osmolality, Urine AND/OR
 • Osmolality, Serum or Plasma AND
 •
Diabetes Insipidus ... • Osmolality, Urine ... • Sodium, Plasma ... Diagnosis #Algorithm #nephrology ... #differential
Classification of Diabetes Insipidus

Central or neurogenic diabetes insipidus:
 - Congenital - Structural malformations affecting the hypothalamus
Histiocytosis and ... uropathy, Metabolic causes ... is aimed at the psychiatric ... Classification #Types #Nephrology ... #Diagnosis #Differential
Alice in Wonderland Syndrome
What? Metamorphophsia - Distortions of the visual perceptions with changes in size (micro
in size (micro and ... lesions (e.g. stroke ... • Epilepsy • Psychiatric ... Syndrome #diagnosis #neurology ... #differential
Urine Color - Differential Diagnosis
Red Urine:
 • Medical conditions: bleeding, porphyria, factitious disorder
 • Meds: rifampin,
Urine Color - Differential ... coingested with rhubarb and ... : • Any cause of ... - Strong Medicine ... discoloration #nephrology
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
Hematuria - Differential ... Hematuria: • Stone ... microscopic and ... #Hematuria #Differential ... #urology #nephrology
Primary Polydipsia
Definition: Excessive volitional water intake
Epidemiology:
 • 6-20% of patients with psychiatric disorders - Most commonly
patients with psychiatric ... ADH suppression and ... Differential Diagnosis ... , Urine Sodium ... diagnosis #management #nephrology