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تعداد آیتم قابل مشاهده باقیمانده : 3 مورد
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Flow rates of various intravenous devices

Flow rates of various intravenous devices
Intravenous catheter Rate of flow with gravity (mL/min) Rate of flow with pressure (mL/min) Rate of flow with Bionector* (mL/min) Percentage increase with pressure (%) Percentage decrease with Bionector* (%)
14 G 50 mm cannula 236.1 384.2 138.3 62.7 –41.4
14 G 14 cm Abbocath 197 366 131.3 85.8 –33.4
16 G 50 mm cannula 154.7 334.4 109.6 116.2 –29.2
14 G 15 cm Leadercath 117.3 211.1 101.1 80 –13.8
18 G 45 mm cannula 98.1 153.1 80.3 56 –18.1
16 G distal port triple lumen central line 69.4 116.1 67.4 67.3 –2.88
20 G 33 mm cannula 64.4 105.1 58.5 63.2 –9.17
22 G 25 mm cannula 35.7 71.4 34.7 100 –2.80
18 G proximal port triple lumen central line 29.7 79.3 28.7 167 –3.37
In this experiment, flow rates from a standard 1 liter bag of saline were measured through various intravenous catheters. For the gravity measurement, a height of 130 cm was chosen. For the pressure measurement, an external pressure bag was inflated to 300 mmHg.
G: gauge.
* Needle-free intravenous access device attached to the cannula.
Reproduced with permission from: Reddick AD, Ronald J, Morrison WG. Intravenous fluid resuscitation: Was Poiseuille right? Emerg Med J 2011; 28(3):201-2. Copyright © 2011 BMJ Publishing Group Ltd.
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