Veterinary ScienceVeterinary ScienceFilling Syringes & Routes of

Administration

• Put only a clean needle in a bottle (aseptic)

• Pull plunger all the way out• Turn bottle upside down• Inject air into the bottle (prevents

“suction pull”)• Draw liquid 1cc past the mark slowly• Remove needle from bottle• “Thump” air bubbles to top of syringe (no

floaters)• Eject air

Filling a Syringe

• Bevel up• Barrel against skin• Pull skin up if possible• Insert needle to hub• Inject slowly to minimize tissue damage

Subcutaneous Injections (SQ)

• Push in quickly• Aspirate – make sure you didn’t hit a vein• Inject quickly• Make sure plunger is all the way down

before removing needle

Intramuscular Injections (IM)