The patient has a serious laceration to the arm. The patient receives a local anesthetic mixed with epinephrine prior to suturing. What does the nurse recognize as the rationale for the epinephrine?
1. Constricted blood vessels will extend the duration of action of the drug.
2. Constricted blood vessels will decrease the amount of pain experienced.
3. Constricted blood vessels will promote relaxation of the patient.
4. Constricted blood vessels will result in decreased bleeding.
Correct Answer: 1
Rationale: Epinephrine is often added to local anesthetics to constrict blood vessels and extend the duration of action of the drug. The amount of vasoconstriction will not significantly decrease bleeding. Vasoconstriction does not decrease pain. Vasoconstriction will not promote relaxation in the patient.
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