When Collecting Blood for Laboratory Tests from a Central Venous

question 23

Multiple Choice

When collecting blood for laboratory tests from a central venous catheter (CVC) that is infusing total parenteral nutrition (TPN) or heparin,it must be flushed with:

• A) 5 mL of saline.
• B) 10 mL of saline.
• C) 15 mL of saline.
• D) 20 mL of saline.