EDTA. Collect sample immediately before giving the next dose (trough level) Half-fill tube and gently mix. SEE COMMENTS BELOW for URGENT testing.

For URGENT FLECAINIDE TESTING, the requesting Doctor must:

-Contact St Vincent's to organise urgent testing requirements (otherwise batch tested). Phone 9288 4095 in hours, or 9288 4112 out of hours.-Notify RCH Specimen Reception 9345 5904 re urgent send away requirements

LAB NOTES :

Centrifuge and aliquot at least 0.5 mL plasma. Store plasma at -70°C.

INPATIENT FLECAINIDE LEVELS MAY BE URGENT. The lab must contact the requesting doctor/ ward to ascertain if the frozen plasma must be sent to the external pathology provider immediately, or, if it is not urgent and can wait to be sent on the next normal working day (Mon- Fri, exlcuding public holidays) at 11.00hrs.

If dispatching out-of-hours, Specimen Reception staff to confirm with the testing laboratory that testing will proceed prior to dispatch.

Send to testing laboratory on dry ice. Do not pack dry ice in a sealed container.  Use appropriate PPE.

Weekly - No specific day - test performed on request requirements