Test Code LAMO Lamotrigine, Serum
Additional Codes
Mayo Code |
---|
LAMO |
Epic Code |
LAB475 |
Sunquest Code |
LAMO |
Reporting Name
Lamotrigine, SUseful For
Monitoring serum concentration of lamotrigine
Assessing compliance
Adjusting lamotrigine dose in patients receiving other anticonvulsant drugs which interact pharmacokinetically with lamotrigine
Method Name
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Performing Laboratory

Specimen Type
SerumSpecimen Required
Collection Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Draw blood immediately before next scheduled dose.
2. For sustained-release formulations ONLY, draw blood a minimum of 12 hours after last dose.
3. Spin down within 2 hours of draw.
4. Remove serum from serum gel tube if applicable.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Serum | Refrigerated (preferred) | 28 days | |
Ambient | 28 days | ||
Frozen | 28 days |
Reject Due To
Gross hemolysis | OK |
Gross lipemia | OK |
Gross icterus | OK |
Reference Values
Patients receiving therapeutic doses usually have lamotrigine concentrations of 2.5-15.0 mcg/mL.
Day(s) and Time(s) Performed
Monday through Friday; Continuous until 2 p.m.
Saturday; Continuous until 1 p.m.
Sunday; 11 a.m.
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.CPT Code Information
80175
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
LAMO | Lamotrigine, S | 6948-4 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
80999 | Lamotrigine, S | 6948-4 |
Forms
If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:
-Neurology Specialty Testing Client Test Request (T732)
-General Request (T239)
-Therapeutics Test Request (T831)