What is vial in medical terms?

The needles are made of metal. The metal part of the needle hub and the part that connects to the needle hub must be kept sterile after being removed from the container. The preparation of the material must be taken into account that we will need two needles to load the medicine and administer it. It's not advisable to give the drug with the same needle as the medication.

If we don't have loading needles, we'll use the largest caliber we have.

The parts of the needle are interesting to note.

The metallic part will vary according to the route to be used, in such a way that a suitable gauge, length and bevel must be used.