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HelpTest Code RIT Methylphenidate, Serum
Specimen 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 freeze immediately. Send 2 mL of sodium heparin plasma frozen in a plastic vial on dry ice.
Serum
Draw blood in a plain red-top tube(s), serum gel tube is not acceptable. Spin down and freeze immediately. Send 2 mL serum frozen in a plastic vial on dry ice.
Method Name
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Reporting Name
Methylphenidate (Ritalin)Specimen Type
VariesSpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Varies | Frozen | 180 days |
Reject Due To
| Hemolysis | NA |
| Lipemia | NA |
| Icterus | NA |
| Other | NA |
Reference Values
Reference Range: 5.0 - 20.0 ng/mL
Day(s) Performed
Tuesday and Thursday
Report Available
5 to 13 daysSpecimen Retention Time
2 weeksPerforming Laboratory
Medtox Laboratories, Inc.CPT Code Information
80360
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| RIT | Methylphenidate (Ritalin) | 3807-5 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| Z1121 | Methylphenidate (Ritalin) | 3807-5 |