Resuscitation

Catheter Flow Rates:

Angiocaths:

14g x 1.75" (2.1 x 45mm)        330 mL/min
 
 
16g x 3.25" (1.7 x 83mm)        127 mL/min
 
 
18g x 1.16" (1.3 x 30mm)        105 mL/min
18g x 1.88" (1.3 x 48mm)        95 mL/min
18g x 2.50" (1.3 x 64mm)        85mL/min
 
20g x 1.16" (1.1 x 30mm)        60 mL/min
20g x 1.88" (1.1 x 48mm)        55 mL/min
 
22g x 1.00" (0.9 x 25mm)        35 mL/min
 
24g x 0.75" 90.7 x 19mm)        20 mL/min
 

Central Lines:

Triple Lumen Catheter (20cm):
Distal port (16g):                      51.67 mL/min
Medial port (18g):                     25.00 mL/min
Proximal port (18g):                  26.67 mL/min

8.5Fr Introducer (10cm):           235 mL/min (gravity)
                                              444 mL/min (300 mmHg)

EZ-IO:

Tibia:        18 mL/min
Humerus:  83 mL/min

Why IV fluid is bad:

From the Hagen–Poiseuille Law:



thus, 



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