A Nurse Is Preparing to Draw a Blood Specimen for D-Dimer

Multiple Choice

A nurse is preparing to draw a blood specimen for D-dimer using a butterfly collection device.No other laboratory specimens are ordered.Which step is necessary to ensure an accurate result?

A) Collect blood in an extra red-top tube prior to collecting the blood for the D-dimer.
B) Ensure that the tourniquet is in place for at least 2 minutes before collecting the specimen.
C) Fill the tube approximately half full to avoid over-diluting the specimen.
D) Shake the specimen vigorously to increase hemolysis.