Why should an intermittent catheter be flushed regularly? (Select all that apply.)
a. To prevent the mixing of incompatible medications and solutions
b. To ensure the patency of the catheter
c. To prevent the formation of emboli
d. To open an occluded catheter
e. To replace lost fluids
f. To provide electrolyte replacement
ANS: A, B
Flushing maintains catheter patency and prevents mixing of incompatible solutions (SASH technique). It will not prevent formation of emboli and may even cause emboli when done inappropriately, such as in an attempt to open an occluded catheter. Flushing uses a small amount of solution and will not replace lost fluids or provide electrolytes.
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