What is the purpose of a plastic needle holder in phlebotomy?

The purpose of a plastic needle holder in phlebotomy is to connect the needle to the collection tube. The needle holder facilitates a secure attachment between the needle and the collection tube, which allows healthcare professionals to draw blood efficiently without the risk of disconnection. This connection is crucial as it ensures that the blood is collected directly into the appropriate tube for testing and minimizes the risk of contamination or sample hemolysis. Additionally, using a needle holder enhances the safety of the procedure by allowing for better control and stability when drawing blood.

The other choices do not align with the primary function of a needle holder. Drawing blood directly into a syringe involves a different setup. Stabilizing the patient during blood collection is typically addressed through proper positioning and technique rather than through the use of a needle holder. Storing used needles safely is a concern that relates to proper disposal methods rather than the purpose of the needle holder itself.