A medical assistant is assisting a provider with the repair of a laceration on a patient's head. The provider's prescription for the procedure includes an injection of 10 mL of lidocaine with epinephrine. The assistant should know that which of the following is the purpose of epinephrine in the local anesthetic?
To reduce bleeding at the site
To prevent an allergic reaction to the lidocaine
To reduce the patient's blood pressure
To decrease the likelihood of infection