Potassium
Potassium is the major intracellular cation (sodium is major extracellular). 90% is exchangeable, with an inverse relationship to serum pH
Tag Electrolytes
Hypokalaemia
Hypokalaemia: the most common electrolyte abnormality in hospitalised patients; mostly caused by drugs and GI disease
Hypernatraemia
Hypernatraemia can be caused by a number of critical illnesses: water depletion (decreased intake, hypotonic fluid loss – renal/non-renal); solute excess (Na+ or other)
Hyperkalaemia Management
Hyperkalaemia is a life-threatening emergency. Basic overview of hyperkalemia management
Calcium basics
Calcium is the most abundant mineral in the body. 1.5% of body weight; 99% is in bone matrix; 1100gramm (27mmol)
SIADH vs Cerebral Salt Wasting
Syndrome of Inappropriate Antidiuretic Hormone Secretion (SIADH) versus Cerebral Salt Wasting