Why do local anesthetics that are given by injection occasionally contain epinephrine?
A. Epinephrine counteracts the vasodilation that occurs with local anesthetic use.
B. Epinephrine counteracts the vasoconstriction that occurs with local anesthetic use.
C. Epinephrine acts as a preservative in maintaining an extended shelf life.
D. None of the above are true.
Answer: A
You might also like to view...
Organs are stored in cold solutions to
A) destroy any bacterial organisms. B) control clotting factors. C) decrease cellular injury. D) alter the pH of the cell tissue.
The postpartum home care nurse is assessing the mother, and finds her temperature to be 101.6°F. What is the most important nursing action?
1. Ask the client how often and how well the baby is nursing. 2. Determine the frequency of the mother's voiding and stooling. 3. Verify how many hours of sleep she is getting per day. 4. Assess the odor and color of the lochia and perineum.
The nurse realizes that a client with teenage children might have the additional developmental task of:
a. adjusting to parenthood. b. extended caring to aging parents. c. accepting changes in generational roles. d. reviewing life.
The male client is having difficulty using the urinal in bed. Which does the nurse implement to facilitate voiding into the urinal?
1. Applies an external urinary catheter 2. Assists client to the upright position 3. Encourages client to void every hour 4. Instructs client to increase fluid intake