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Flush an IV Catheter Using the SASH Method (Cómo purgar un catéter intravenoso con el método SASH)

You use the SASH (Saline, Administer infusion, Saline, Heparin) method to flush your child’s IV catheter when infusing medicine or fluids. Flushing with saline before and after you give an infusion rinses the catheter to prevent medicines from combining. Flushing with heparin at the end keeps your child’s catheter from getting plugged.

PHS created this video as a companion to our online education course for nurses. The video assumes an understanding of medical and technical information. Information in the video does not replace your care plan. Contact your health care provider if you have questions. You can find PHS online courses at