Sample Page
The page below is a sample from the MediaLab course,
Phlebotomy.
Learn about Compliance & CE courses available for
clinical laboratories and
individual medical technologists.
- 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.