PTCE Pharmacy Technician

Answer: A - A filter needle should be used to draw fluid out of a glass ampule. This is because an ampule has to be broken in order to open the container. The filter needle will filter out any particles of broken glass that have fallen inside the ampule. Once the fluid is drawn up into a syringe with a filter needle, the filter needle is discarded, along with any filtered particles, and exchanged with a regular needle for discharging the liquid from the syringe.