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,...
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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...
Blood test results can change in a month. In fact, blood test results can change in a week. A month is a lot of time for a lab test result to change and be different from a previous one. There...
Two attempts at drawing blood should be made by a technician or phlebotomist when performing venipuncture. Normally, a phlebotomist will try to hit the vein and collect blood at the first...