Structure of the butterfly needle makes it a very handful piece , it consists of a fine needle that comes in different gauges
from a size of 21 until 25 ( diameter decreases by increasing gauge
number ) , the needle has two flexible wings fixed to both sides (
helping the phlebotomist to control the butterfly needle during
collecting blood process ) attached to a flexible plastic tube which my
be connected to a syringe or a vacuum tube holder.
There are several uses for the butterfly needle
but the main use is for infants or children where a special 25 gauge
size may be used , unfortunately it needs high skills to manage
especially with children , It also can be used with adults who suffer
from narrow veins as from the advantages of the needle it allows the
phlebotomist to confirm that the needle entered properly through the
vein .
Using the butterfly needle to draw blood is nearly similar to the regular needle but with slight variation.
We need to take some considerations before using the butterfly needle :
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