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Needles
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The page below is a sample from the LabCE course
Phlebotomy
. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.
Learn more about Phlebotomy (online CE course)
Needles
Needles come in many sizes.
The size of the needle is called the gauge.
The larger the needle, the smaller the gauge number.
For most routine venipunctures, a 21 or 22 gauge needle is used.
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