• Administer insulin and fluid infusions via the same cannula - See figure 1
    • prevent inadvertent and dangerous administration of either insulin or glucose alone in the event of a blocked cannula
  • Use a syringe pump for insulin
  • Use a volumetric infusion pump for IV fluid
    • to detect and prevent reverse flow of insulin into fluid-giving set in the event of restricted or occluded flow through the cannula
    • on release of such a restriction, risk of inadvertent insulin bolus administration from the fluid giving set

DEFINITION

Anti-Siphon Check Valve

  • One-way valve that:
    • prevents ‘reverse flow’
    • with higher opening pressures to prevent inadvertent fluid flow caused by siphoning when tying into a higher flowing line

PROCEDURE

Insulin infusion

  • Administer by a syringe pump via an infusion set with an anti-siphon valve
    • to prevent inadvertent flow to patient from an unclamped or damaged syringe

IV fluids

  • Run IV maintenance fluid via a volumetric pump to a Luer connector without a valve. See figure 1

Assembly

  • See figure 1
  • Drug infusion syringe to a line with an anti-siphon valve
    • run infusion through line
    • place syringe into syringe driver
  • IV fluid to an administration set to a Luer connector without a valve
    • run IV fluid through administration set
    • place administration set in a volumetric pump
  • Connect each into one of the double ends of a two-way needle-free extension set
    • run IV fluid through extension set
  • Connect the single end of the two-way needle-free extension set into the cannula

© 2022 The Bedside Clinical Guidelines Partnership.

Created by University Hospital North Midlands and Keele University School of Computing and Mathematics.

Research and development team: James Mitchell, Ed de Quincey, Charles Pantin, Naveed Mustfa