What technique is used to ensure that a needle is correctly positioned for an injection?

Aspirating is the technique used to ensure that a needle is correctly positioned for an injection. This process involves pulling back on the plunger of the syringe after the needle is inserted into the injection site. The purpose of aspirating is to check for blood return in the syringe, which would indicate that the needle has entered a blood vessel. If blood is aspirated, it is essential to withdraw the needle and reposition it to avoid injecting medication into a blood vessel, which can lead to complications. Therefore, aspirating is a critical step in confirming proper needle placement and enhancing patient safety during injections.