Test Details
Methodology
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Result Turnaround Time
7 - 14 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Test Includes
Ketamine; norketamine
Use
Therapeutic drug management; detect presence of ketamine
Specimen Requirements
Specimen
Serum or plasma
Volume
2 mL
Minimum Volume
0.5 mL
Container
Red-top (no additive) tube or green-top (heparin) tube; gel-barrier tubes are not recommended
Collection Instructions
Serum or plasma should be separated from cells within two hours of venipuncture. Submit serum or plasma in a plastic transport tube.
Storage Instructions
Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen.
Patient Preparation
Trough levels are most reproducible.
Causes for Rejection
Gel-barrier tubes
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 790620 | Ketamine and Mtb. Qt, S/P | 790572 | Ketamine | ng/mL | 3701-0 | |
| 790620 | Ketamine and Mtb. Qt, S/P | 790576 | Norketamine | ng/mL | 21421-3 | |
| Order Code | 790620 | |||||
| Order Code Name | Ketamine and Mtb. Qt, S/P | |||||
| Order Loinc | ||||||
| Result Code | 790572 | |||||
| Result Code Name | Ketamine | |||||
| UofM | ng/mL | |||||
| Result LOINC | 3701-0 | |||||
| Order Code | 790620 | |||||
| Order Code Name | Ketamine and Mtb. Qt, S/P | |||||
| Order Loinc | ||||||
| Result Code | 790576 | |||||
| Result Code Name | Norketamine | |||||
| UofM | ng/mL | |||||
| Result LOINC | 21421-3 |