Access Total T3, Access Thyroglobulin, Access Free T4, Access GI Monitor Immunoassays. An in vitro diagnostic medical device (IVD)(for use with the Access family of immunoassay systems)Access Total 3Reference Number: 33830Access ThyroglobulinReference Number: 33860Access Free T4Reference Number: 33880Access GI MonitorReference Number: 387687All LotsARTG Numbers: 213975 and 213976