why tap the needle and squirt out a little bit?

Question: before giving an injection why does the doc tap the needle and squirt it a little bit first...

Answer: A little bubble of air won't hurt you, even inf injected IV. Most medication vials are overfilled, so when we draw them up, there's a little bit extra drug in the syringe. If you tap the syringe, the air rises and you can squirt it out of the needle. Then you can measure your dose properly. If there's extra in there, we squirt that out.

Related Questions

Related Items