Emergency room admission testing only
Immediatley following collection, mix sample by inverting 8 - 10 times to prevent clotting
Do not open and do not spin
Grey Sodium flouride (NaFl)
Immediately following collection, mix sample by inverting 8 - 10 times to prevent clotting
Immediately following collection, thoroughly mix sample by gently inverting 5 times
Plasma (EDTA or heparin):
Lavender (EDTA), 4mL
Dk green heparin (Li or Na), no gel
Gold serum separator (SST) tube
Ambient (preferred) - 7 days
Refrigerated - 30 days
Frozen - 6 months
Allina Health Hospitals and any affiliate sites collecting samples for this test should send them STAT, directly to HCMC, for testing.
Remote sites should follow the Process for STAT specimen to be sent from remote locations direct to Hennepin County Medical Center.
High-Performance Liquid Chromatography (HPLC)