Test Details
Methodology
Liquid chromatography with tandem mass spectrometry (LC/MS-MS)
Result Turnaround Time
5 - 7 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.
Use
This test is used for therapeutic drug management.
Limitations
This test was developed and its performance characteristics determined by Labcorp. It has not been cleared or approved by the Food and Drug Administration.
Specimen Requirements
Specimen
Serum or plasma
Volume
2 mL
Minimum Volume
0.5 mL
Container
Red-top, lavender-top (EDTA) 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.
Stability Requirements
| Temperature | Period |
| Room temperature | 8 days |
| Refrigerated | 8 days |
| Frozen | 21 days |
| Freeze/thaw cycles | Stable x3 |
Reference Range
Amiodarone: 1000–2500 ng/mL
Storage Instructions
Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen.
The storage instructions reflect optimal storage conditions for samples that have a typical pathway through preanalytical steps. Stability information is provided to inform decisions for samples that do not follow typical pathways, such as add-on testing days after collection.
Causes for Rejection
Gel-barrier tubes
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 702891 | AMIODARONE (CORDARONE), S/P | 55152-3 | 702888 | AMIODARONE | ng/mL | 3330-8 |
| 702891 | AMIODARONE (CORDARONE), S/P | 55152-3 | 702889 | DESETHYLAMIODARONE | ng/mL | 6774-4 |
| Order Code | 702891 | |||||
| Order Code Name | AMIODARONE (CORDARONE), S/P | |||||
| Order Loinc | 55152-3 | |||||
| Result Code | 702888 | |||||
| Result Code Name | AMIODARONE | |||||
| UofM | ng/mL | |||||
| Result LOINC | 3330-8 | |||||
| Order Code | 702891 | |||||
| Order Code Name | AMIODARONE (CORDARONE), S/P | |||||
| Order Loinc | 55152-3 | |||||
| Result Code | 702889 | |||||
| Result Code Name | DESETHYLAMIODARONE | |||||
| UofM | ng/mL | |||||
| Result LOINC | 6774-4 |