“…Unlike older technologies, Immulite has less cross-reactivity and does not require dilution at high concentrations (24,26). Early studies of this technology demonstrated lower detection limits of 1.0-1.3 mIU/mL (24,(26)(27)(28), which is consistent with what is quoted in the package insert (29). However, the coefficient of variation has been shown to exponentially increase from 7% at 5.0 mIU/mL to 20% at 1.0 mIU/mL (30).…”