Home
HelpEthosuximide, Serum
Additional Codes
LAB683
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 Serum
Collection Instructions:
1. Within 2 hours of collection, centrifuge the specimen.
2. For serum gel tubes, serum may sit on the gel or be aliquoted into a plastic vial.
3. For red top tubes, aliquot serum into a plastic vial immediately after centrifugation.
Specimen Type
SerumSpecimen Minimum Volume
Serum: 0.25 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 14 days |
| Frozen | 28 days | |
| Ambient | 14 days |
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 Rochester
CPT Code Information
80168
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| ETX | Ethosuximide, S | 3616-0 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 8769 | Ethosuximide, S | 3616-0 |
Forms
If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:
-Therapeutics Test Request (T831)