Tuesday, 28 May 2013

ELECTROLYTES


Daily Requirement Electrolytes
Na  2-3mmol/kg/day
K   2-3mmol/kg/day

Potassium Correction
Max delivery 0.4mmol/kg/H
Delivery rate = 13.3mmol/g  x g KCl x rate (ml/h)
                                                  500ml     Wt (kg)
Requirement  = Maintenance + Deficit
Maintenance =  2-3mmol/kg/day
Deficit = (aim - current)(0.6)(Wt)
Requirement =  (aim - current)(0.6)(Wt) + (2 or 3)(Wt)
                                                    13.3mmol/L
Note: 1g KCl = 13.3 mmol/L

Sodium Correction
Max delivery rate = 0.5mmol/L/H
Requirement =  (aim - current)(0.6)(Wt) + (2 or 3)(Wt)
                      =  ........mmol/L

Note: 1cc 3% saline = 0.513mmol/L                   

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