Potassium phosphate
(K-Phos); Electrolyte Supplement; Inj per mL:
potassium 4.4 mEq, phosphate 3 mM
Powder (Neutra-Phos-K): phosphorus 250 mg [8 mM] and
potassium 556 mg [14.25 mEq] per packet;
Severe Hypophosphatemia (IV):
Low Dose (phosphorus >1.0 mg/dL): 0.08 mM/kg over 6h
Intermediate Dose (phosphorus 0.5-1 mg/dL): 0.16-0.24 mM/kg over 4-6h
High Dose (phosphorus <0.5 mg/dL): 0.36 mM/kg over 6h
Maintenance: Children: 0.5-1.5 mM/kg/24h
IV or 2-3 mM/kg/day PO in divided doses.
Daily maximum 50-70 mM
IV or 50-150 mM PO.
Maximum concentration for
IV administration: Central line: 0.12 mM/mL; peripheral line: 0.05 mM/mL.
Intermittent
IV infusion should be reserved for severe depletion and requires continuous EKG monitoring.