2276 results
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
can be high or low ... intake (Primary polydipsia ... ), Low solute intake ... differential #diagnosis #table
Classification, Differential Diagnosis, and Features of Hyponatremia According to Volume Status 

Hypervolemic hypernatremia 
 - CHF
- Psychogenic polydipsia ... Differential #Diagnosis #Table
Hyponatremia Diagnosis Algorithm
UOsm ≥ POsm - Vasopressin-Dependent
 • UNa < 20 mEq/L - Appropriate (↓ EABV)
Consider: Primary polydipsia ... , Low solute intake
Diagnostic Approach to Hyponatremia
Box A:
 • Normo/hyperosmolar Hyponatremia: Glucose, Mannitol, Glycine, Contrast media, Maltose
 • Pseudohyponatremia:
Box C: Primary Polydipsia ... , Low Na intake,
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
Hypothyroidism, Low ... deficiency, Primary polydipsia ... diagnosis #sodium #low
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Water: • Primary polydipsia ... "psychogenic polydipsia ... • Central Dl (Low
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
Beer Potomania - Low ... • Psychogenic Polydipsia
Simplifying Mechanical Ventilation - Modes of Mechanical Ventilation - Comparison Table

You now know many modes whether
Ventilation - Comparison Table ... You now know ... Supported) and how ... Breaths #Comparison #Table
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
demands Hypoxemia - low ... of hypoxia) - Low ... SvO2 → Low PaO2 ... COHb, MetHb) - Low ... CaO2 → Low SvO2
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
100): Primary polydipsia ... , Low solute intake