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...
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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...
Sometimes, you may be called by the doctor's office or laboratory to come back and do a blood test. When that happens, there is nothing to worry about. There are so many reasons why the laboratory or...