Venous Access Devices, Such as Heparin Locks (Check All That

Venous access devices, such as heparin locks (check all that apply)

A) may be used by phlebotomists for routine blood collections
B) are used primarily for repeated phlebotomy during a 3 hour glucose tolerance
C) must be flushed with saline prior to collection for special coagulation studies
D) are used to administer medication and should not be used for blood collection