When using the syringe method to collect a blood specimen, how is the blood added into additive and nonadditive tubes?
A) the needle is removed from the syringe, the caps are removed from the tubes, and blood is pushed into each tube, then re-stoppered and mixed
B) the syringe needle is used to puncture the cap of each tube, then blood is pushed into each tube
C) using a clean needle, puncture all tubes to release the vacuum, then remove the caps and gently fill each tube
D) using a syringe transfer device attached to the syringe, insert each tube into the device and allow the blood to flow freely
Answer: D
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