Treatment of acute hypophosphataemia

IV: 0.2 mmol/kg/dose [range 0.15–0.33 mmol/kg/dose] over 6 hours. Repeat as necessary. Aim to maintain normophosphataemia of 1.8–2.6 mmol/L (5.6–8.1 mg/dl).

Parenteral:¹²

Preterm – First days of life: 1.0-2.0 mmol/kg/day (31-62 mg/kg/day)

Growing preterm – 1.6-3.5 mmol/kg/day (77-108 mg/kg/day)

Term neonates – 0.7-1.3 mmol/kg/day (20-40 mg/kg/day)
Enteral: 2–4.5 mmol/kg/day (62–140 mg/kg/day of phosphorous)^7,8

1. 
   Calculate intake from parenteral and enteral sources
   
2. 
   Supplement the difference via IV or oral route.