It used to be that all 50 states required blood tests before getting a marriage license but that is no longer the case. Premarital blood tests have been done away with. Blood tests are no longer...

Like everything else, phlebotomy has its own tools for getting the job done. There is a piece of equipment for every step in the process to ensure a safe and proper procedure. Every phlebotomist...

In order to draw blood for a blood test a needle has to be inserted into a vein. Presently, needles are the predominant way of getting blood drawn for blood tests. New technology is being developed,...

Below is a needle gauge chart showing the sizes of needles used for the Evacuated Tube System, Syringe Method, and the Butterfly Needle when performing venipuncture. Tables showing needle sizes...

Among the three methods of venipuncture, the butterfly system or winged infusion set, is probably the easiest to use and control when drawing blood for a blood test. The butterfly comes with a...

The evacuated tube system is the most used method for drawing blood. It comes with a needle, a tube holder, and a vacutainer tube. One end of the needle is screwed unto the tube holder. The other end...