Before instilling any additives to a client's medication lock, normal saline is used to flush the device. Which of the following provides the best rationale for this action?

Question

A) Prevents drug/solution incompatibilities
B) Dilutes the medication for easier administration
C) Decreases the drug's irritating effect
D) Maintains the serum sodium level and pH balance

Answer 1

A
Feedback:
To prevent incompatibility between medication doses, the line should be flushed with normal saline. The medication is diluted and mixed in the partial bottle prior to administration. Following the instructions for mixing and preparation of the drug should allow for safe (less irritating) administration of the drug. Saline flush is used in small amounts (approximately 2 to 3 mL) and will not affect the sodium level or pH of the blood.