Originally Posted by veetach I beg to differ about the sizes of cannulas listed above. It used to be a trend years ago to throw the biggest IV into the patient that they can handle. Not so anymore. Chances of phlebitis increases with increased sizes of IV cannulas.
I cannot imagine putting 16ga IV's into a patient in an emergency room. If this patient is a victim of multiple trauma or multiple GSW or stab wounds maybe. Usually those come in with larger bore IV's anyway.
Our hospital has now become very adamant about not starting large bore IV's. Even our pre op patients go in with a #20 in. I can give any med (including blood) through a #22 if I need to, and believe it or not. A #22 is the recommended size to prevent phlebitis. We use #20's for CTA of chest and cardiac caths, and sometimes you cant even get a #20 in them. Go with whatever you can get.
what if your patient drops their pressure? can u fluid resuscitate through a 22g? itll take at least an hour or two to get the liter of ns in.
if you draw blood through a 22g, it will hemolyze frequently.
i know, id rather have the large bore in me, until they had a diagnosis on whats wrong with me. always prepare for the worse when there is a vague complaint like cp or abd pain that can be one of a million things.
blood through a 22g? are you kidding? ive seen it done, but always after lying that the transfusion takes 4 hours when it actually took 5.
i respectfully disagree. ivs get phlebitic because they are in bad spots and the catheter moves in and out. id rather have a phlebitic patient than a dead one. 18g is not that big
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