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Feeding Tube Flush Volume Calculator

Work out feeding tube flush volume instantly with clear inputs, formula shown and shareable results.

About Feeding Tube Flush Volume Calculator

Totals the water given through a feeding tube in flushes, which must be counted in the daily fluid balance.

Formula

Flush volume

Daily flush volume = flush volume x (routine flushes + medication flushes)

Worked example

With the default values below, Feeding Tube Flush Volume Calculator returns Total flush volume per day of 300. Change any input above and every figure here is recalculated in your browser.

Inputs used

Flush volume each timeaccepts 5–100 mL
30 mL
Routine flushes per dayaccepts 0–24
6
Medication-related flushes per dayaccepts 0–30
4

Results

Total flush volume per day
300 mL
Flushes per day
10
Flush volume
0.300 L
Share from medication flushes
40.0%

Step by step

  1. 1Values used
  2. 2Flush volume
  3. 3Total flush volume per day= 300 mL
  4. 4Flushes per day= 10
  5. 5Flush volume= 0.300 L
  6. 6Share from medication flushes= 40.0

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax or compounding frequency into account.
  • Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.

Frequently Asked Questions

Why flush at all?

Flushing prevents tube blockage, which is the commonest mechanical complication of enteral feeding.

Should flushes be sterile water?

Sterile water is used for jejunal tubes and immunocompromised patients; tap water is acceptable for many gastric tubes.

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