Test Code ETX Ethosuximide, Serum
Specimen Required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL
Collection Instructions:
1. Serum gel tubes should be centrifuged within 2 hours of collection.
2. Red-top tubes should be centrifuged and the serum aliquoted into a plastic vial within 2 hours of collection.
Specimen Type
SerumSpecimen Minimum Volume
0.25 mL
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Serum | Refrigerated (preferred) | 14 days | |
Frozen | 28 days | ||
Ambient | 14 days |
Reject Due To
Gross hemolysis | Reject |
Reference Values
Therapeutic: 40-100 mcg/mL
Critical value: >150 mcg/mL
Day(s) Performed
Monday through Saturday
Report Available
Same day/1 daySpecimen Retention Time
2 weeksPerforming Laboratory
Mayo Clinic Laboratories in RochesterCPT Code Information
80168