Tube-feeding regimen: rate, bolus volume and free water flushes
Formula volume from goal kcal ÷ kcal/mL, as a continuous or cyclic rate or bolus feedings, with protein delivered, formula free water and the flushes needed to meet a fluid goal.
Inputs
7 of 8kcal/day
kcal/mL
Optional; from the product label.
g/L
%
Schedule
h
per day
mL
Optional; e.g. from the fluid needs calculator.
mL/day
per day
When to use
- Writing or checking a tube-feeding order: continuous, cyclic (for example 12 to 16 hours overnight) or bolus.
Pearls and pitfalls
- Free water in standard formulas is about 84% of volume at 1.0 kcal/mL, about 76 to 78% at 1.5 kcal/mL and about 70% at 2.0 kcal/mL; use the product's own value.
- Count medication flushes and IV fluids toward the fluid goal.
- A carton is usually 237 mL (8 fl oz) or 250 mL; check the product.
Why use
Rate, bolus volume, protein and flushes in one order check.
Volume (mL/day) = goal kcal ÷ formula kcal/mL. Continuous rate = volume ÷ hours. Bolus = volume ÷ feedings. Formula free water = volume × water %. Flush water = fluid goal − formula free water