47
the medical assistant's responsibilities in laboratory testing include all of the following except.
a. having a working knowledge of normal reference ranges
b. proper patient preparation
c. specimen collection
d. performing waived and moderately-complex lab testing
48 a failed venipuncture can occur for all the following reasons except
a. insufficient tube vacuum
b. collapsed vein
c. needle inserted bevel
d. needle bevel in against the wall of the vein