Aspiration, more information

However, if you have done this and a flash of blood appears in the needle hub, withdraw the needle and select a new site for injection. Egro I checked The Australian Immunization Handbook and incredibly, this is item 5. under Intramuscular Injections It is not necessary to draw back on the syringe plunger before injecting a However, if you have done this and a flash of blood appears in the needle hub, withdraw the needle and select a new site for injection. So the technique I was taught decades ago and which you have taught since has been quietly retired. I ll check the science behind this curious decision. Keep up the good work. Good question Mom This doesnt explain why