why do we need to tap needle before injecting
health advisory
Hospital
Doctor Yu
2007-11-8 19:08:23
Answers:
Unless you are injecting an entire syringe full of air a few tiny bubbles is unlikely to ever cause any problem. n the otherwise healthy adult it is estimated that it would take an injection of approx 100cc to cause injury or death. The main reason to clear the bubbles in a syringe is to ensure that you are injecting the correct volume of a med ie. 2 units of insulin not 1.5 units and some air.
to get rid of potentially deadly air bubbles
it dislodges trapped air pockets
Dislodge and remove potentially fatal air bubbles
I really hope you dont inject anyone.or else you should already know this.
So any bubbles will rise to the top to be evacuated
To tap out any air bubbles present in the syringe so as not to inject air into the veins, causing an embolism.
To remove air bubbles, if they get into the blood, it can be deadly.
i am now deathly frightened of air bubbles.
get the bubble out that form within the needle
To get rid of any air bubbles inside the tube, air in the formulation could enter the body and cause something known as an embolus, a sometimes instantly lethal condition.
Tapping the needle before injections or IV pushes helps dislodege air bubbles which would potentially go into the blood stream. Keep in mind though that you need quite a bit of air at least a whole IV line of air if not more to actually cause an air embolism. Ridding your syringe of air bubbles is good practice but not lethal.