Child with an immediate life threatening medical emergency requiring resuscitation
Severe HAGMA and NAGMA, uncompensated. Possible additional respiratory acidosis.
Anion gap = 22
Delta ratio = 0.4
severe total body potassium depletion
Fluid deficit – high chloride, high Hb, high lactate
Normal renal function
High glucose
check ketones
Likely severe DKA
Life threats – airway (CNS depression), fluid deficit, potassium depletion, severe acidosis
Care with intubation – paralysis will worsen respiratory acidosis and pH – cardiac arrest immediate threat. Consider HCO3 pre intubation and hyperventilation at pre intubation RR.
Potassium deficit (mmol): Normal K (3.5) – actual K X body weight X 0.4
Daily requirement is 1mmol/kg
In patient NBM, potassium requirement is maintenance plus deficit
Potassium dose in children not to exceed 0.3-0.5 mmol/kg/hr