Our sister hospital has a CLABSI problem but we have been CLABSI free for years. We advocate drawing labs directly from the hub, NOT through a cap and then replacing the cap with a new one. Our sister hospital draws labs through the caps and does not replace them after flushing. We cannot find clear literature supporting either approach. Knowing that there is not a cap on the market with a 100% clean out rate after flushing, we prefer to not draw through caps. What is the correct or recommended technique?