qftb tubes should be at what temperature
1. When QFTB tubes are received, check to make sure: a) There are 3 tubes containing 0.8 â 1.2 ml of blood , NIL (gray), ANTIGEN (red) and MITOGEN (purple) b) All tubes should be transported at room temperature (22Â° C + 5Â° C): Blood collection was done <16 hours from the current time, Re-mix tubes by inverting 10 times immediately prior to incubation.