Which of the Following Acceptable Flush Methods for Central Venous

Which of the following acceptable flush methods for central venous access devices are matched with a correct statement? (Select all that apply.)

A) Positive pressure flush: decreases blood backup in the tubing
B) Pulsing flush: removes fibrin that has formed in the tubing
C) Continuous flush: evidence-based practice for heparinization
D) Pulsing flush: need to check with manufacturer instructions
E) Positive pressure flush: clamp the catheter before syringe is empty