i just did my injection in my glute and when i asperated blood flowed through the syringe(then the suspension turned pink). i pulled out and used another pin, but i reused the suspension that had blood in it. was that right to do? i am using a 22gauge 1.5 inch pin filled with 2cc's of suspension. YES i know where to inject. i am not a first timer..... first timer for blood though.i think i injected a little closer to my hip this time. for all the people who dont asperate when hitting glutes...ASPERATE!