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HelpTest ID FMEP Meperidine (Demerol) and Normeperidine, serum
Method Name
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Reporting Name
Meperidine (Demerol)Specimen Type
VariesSpecimen Required
Submit only 1 of the following specimens:
Plasma
Draw blood in a green-top (sodium heparin) tube(s). Plasma gel tube is not acceptable. Spin down and send 3 mL of sodium heparin plasma refrigerated in a plastic vial.
Serum
Draw blood in a plain red-top tube(s). Serum gel tube is not acceptable. Spin down and send 3 mL of serum refrigerated in a plastic vial.
Specimen Minimum Volume
0.6 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Varies | Refrigerated (preferred) | 14 days | |
| Frozen | 180 days | ||
| Ambient | 72 hours |
Reference Values
Meperidine:
Reference Range: 400 - 700 ng/ml
Normeperidine: No reference range provided
Day(s) Performed
Monday through Sunday
Performing Laboratory
Medtox Laboratories, Inc.CPT Code Information
80362
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FMEP | Meperidine (Demerol) | 68314-4 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| Z1132 | Meperidine | 73934-2 |
| Z1159 | Normeperidine | 73933-4 |