2986 results
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... - Excess free water ... • No access to water ... GI loss • Watery ... Diagnosis #Algorithm #Causes
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Causes of Hypernatremia ... Diagnosis Inadequate water ... Lack of access to water ... Differential #Diagnosis #Causes
Hypothalamus Anatomy and Hypothalamic Nuclei
 • Anterior hypothalamic nucleus - Body temperature, thermal regulation (heat dissipation),
Paraventricular nucleus - Water ... oxytocin, destruction causes ... hypothalamic area - Water ... regulation, destruction causes ... Supraoptic nucleus - Water
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
 • Primary
Output > 3L /day Water ... 200 mOsm/kg) • Water ... Diagnosis #Algorithm #causes
Management of SIADH
Treat underlying cause:
 • Causes can include pain, primary lung pathology, post-operative phenomenon, medications,
Treat underlying cause ... : • Causes can ... Free water restriction ... administered • Can cause ... Induces osmotic water
Dyspnea - Differential Diagnosis Framework

Cardiovascular Causes of Dyspnea:
 • Myocardium:
	- Heart failure
	- CAD/ACS
	- Valvulopathy
 • Electrical:
	-
Cardiovascular Causes ... Tamponade Pulmonary Causes ... • Alveoli: - Water ... syndrome Other Causes ... differential #diagnosis #causes
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
Causes of Polyuria ... Urine Following Water ... Urine Following Water ... Diagnosis #Algorithm #Causes
Diarrhea - Differential Diagnosis Algorithm
Inflammatory
    - Invasive Infections
    - Non-Infections
Watery
Non-Infections Watery ... Diagnosis #Algorithm #causes
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Causes of Polyuria ... Excess Intake of Water ... Reabsorption of Water ... Differential #Diagnosis #Causes
Polyuria - Differential Diagnosis
Solute Diuresis
 • Na intake/saline
 • Glucosuria: Hyperglycemia, SGLT-2 inhibitors
 • Urea: Exogenous
Mannitol use Water ... Differential #Diagnosis #Causes