Announcement
The update for which you searched was implemented before July 2026. The was/is format for test updates is not available for this search; however, the result of the search will show a description of the change. Was/Is comparisons of changes will appear only for updates effective July 2026 onwards.
Separate specimens must be submitted when multiple tests are ordered for the following CRITICAL FROZEN tests:
F8AR – FACTOR VIII ACTIVITY
WVFAP – VON WILLEBRAND FACTOR ANTIGEN
VWFAR – VON WILLEBRAND FACTOR ACTIVITY (RISTOCETIN COFACTOR)
F10AR – FACTOR X ACTIVITY
F7AR – FACTOR VII ACTIVITY
PAIAR – PLASMINOGEN ACTIVATOR INHIBITOR, ACTIVITY