Choose the Correct Statement Regarding Proper Specimen Collection for Coagulation

Multiple Choice

Choose the correct statement regarding proper specimen collection for coagulation testing from the following choices:

A) The tube needed for coagulation testing should always be the first tube drawn
B) It is acceptable to fill the sodium citrate tube halfway in a polycythemic patient for coagulation testing
C) When drawing blood from a catheter, care must be taken to avoid heparin contamination
D) Butterfly needles should never be used when drawing coagulation tubes