Different Types Of Needles Used To Draw Blood. Grab the patients lower arm below site of puncture firmly to draw the skin taut and anchor the vein from rolling. The needles most commonly used in the medical field range from number 7 the widest to number 33 the smallest.
The most common blood test performed assessing the type and number of blood cells in a patients blood. When you draw using a syringe you com-plete the process by transferring the blood to the tubes with a Luer-lock transfer device. IV needles are sized by gauges and the smaller the gauge number the bigger the needle will be.
According to the Cleveland Clinic lab tests identified as common include.
Measures glucose sodium potassium calcium chloride carbon. You will learn three different phlebotomy techniques. The needles most commonly used in the medical field range from number 7 the widest to number 33 the smallest. If properly inserted blood should flash into the catheter.
