Preflush
Preflush is a preparatory flushing procedure used in various settings to remove air, stagnant fluids, or contaminants from a system before a subsequent operation, sampling, or administration. The goal is to establish representative conditions and reduce the risk of contamination or carryover from previous contents.
In medical care, a preflush commonly involves infusing a small volume of sterile saline through an intravenous
In water quality testing and environmental sampling, preflush refers to purging the distribution system with water
In industrial and process engineering, preflush is used for pipeline or reactor startup to clear residues from
Benefits include improved sample integrity and reduced cross-contamination; potential downsides include added fluid volume, cost, and