Flow rate depends on diameter and length of IV; the Hagen–Poiseuille equation.
16G IV: 13.2 L/hr
18G IV: 6.0 L/hr
20G IV: 3.6 L/hr
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
Central venous catheterization
External jugular vein cannulation
Intraosseous access
Peripheral IV placement
Pulmonary artery catheter
Ultrasound-assisted peripheral line placement
Arterial line
IV fluid resuscitation