Vascular access

Types

Flow Rates

Flow rate depends on diameter and length of IV; the Hagen–Poiseuille equation.[1]

Peripheral IV
  • 16G IV: 13.2 L/hr
  • 18G IV: 6.0 L/hr
  • 20G IV: 3.6 L/hr

Central Line
  • 5 Fr PICC/Port: 1.75 L/hr
  • 7 Fr TLC 16G distal port: 1.9 L/hr
  • 7 Fr TLC 18G proximal port: 3.4 L/hr
  • 12 Fr HD: 23.7 L/hr
  • 8.5 Fr Cordis/introducer sheath: 7.6 L/hr
  • 8.5 Fr Cordis/introducer sheath with pressure bag: 20.0 L/hr

See Also

References
  1. Vascular Access. In: Marino, P. The ICU Book. 4th, North American Edition. Philadelphia, PA: Wolters Kluwer Health/Lippincott Williams & Wilkins; 2013:3-41
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