Phlebotomy Technician

Answer: C - Phil and Pheona are helping to maintain quality assurance of the additive stock. Because some preservatives and anticoagulants are not stable for long periods, shelf life of the stock needs to be monitored. Additive tubes should not be used if older than the printed expiration date. Stock should be rotated to ensure the oldest stock is used first. In many clinical laboratories, it is the responsibility of the phlebotomist to ensure additive stock is not expired.