What are the sample requirements for the cytokine ratio test at RFU Chicago?
30-40mls of blood collected in green top (lithium heparin additive) tubes mixed well before posting (tubes rolled end over end about 10 times). Not refrigerated. Must be received by RFU within 48 hours of blood being drawn during working hours. You can have the blood drawn at TDL (on Wimpole St, two doors from Dr Gorgy) or you can arrange to get a post pack from Dr Gorgy/TDL and have the blood drawn at your GP (or local hospital) on Monday/Tuesday afternoon and then post it back to TDL special delivery before 9am so that they add it to their fedex pick up on Tuesday/Wednesday in time to get it to Chicago within 48 hours.