During a routine venipuncture, when should the phlebotomist request that the patient "make a fist"?
a. after applying the tourniquet and before inserting the needle
b. after the last tube has been drawn
c. after the procedure is finished and the gauze has been applied so that bleeding stops.
d. only if a tourniquet is not
a. after applying the tourniquet and before inserting the needle
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