Author Question: When administering phenytoin (Dilantin) through the patient's IV line, the nurse carefully flushes ... (Read 9 times)

Themember4 · **on:** Jul 23, 2018

When administering phenytoin (Dilantin) through the patient's IV line, the nurse carefully flushes the IV with normal saline before and afterward to avoid crystal formation of the medication that occurs when it mixes with dextrose in water (D5W) solution.

Which type of drug interaction is the nurse being careful to avoid?
a.
Antagonism
b.
Potentiation
c.
Synergism
d.
Incompatibility

Question 2

The nurse is noting an order for a medication to be given TID. Which times will the nurse plan to administer the medication to the patient?

a. 9 A.M., 1 P.M., 5 P.M. and 10 P.M.
b. 9 A.M. and 9 P.M.
c. 9 A.M., 1 P.M. and 5 P.M.
d. Nightly before the patient goes to sleep

yeungji · **Reply #1 on:** Jul 23, 2018

Answer to Question 1

ANS: D
When medications combine to form crystals or adverse chemical reactions, the result is a drug incompatibility. Compatibility must be assessed prior to medication preparation and administration.

Answer to Question 2

ANS: C
TID indicates that the medication is to be administered three times daily. Common times for TID medications are 9 A.M., 1 P.M. and 5 P.M.