Test Code MTREX Methotrexate
Additional Codes
| PathLab | MTREX |
| Epic ID | LAB481 |
Specimen Requirements
Preferred Collection Container:
Green NO Gel (Lithium Heparin)
Also Acceptable Collection Container:
Red (No Additive)
Collection Information:
Do not use gel separator tubes. Collect blood in a green no gel lithium heparin tube or serum red top tube.
Transport Information:
Centrifuge and aliquot 0.6 plasma or serum into a transport tube.
Minimum Sample Volume:
0.2 mL plasma or serum
Stability/Transport
| Temperature | Stability | Preferred Transport |
| Refrigerated | 3 days | X |
| Frozen | 6 months | |
| Room Temp | 12 hours |
Performing Lab
Iowa Methodist Medical Center
Methodology
Immunoassay
Day(s) Performed
Daily
Report Available
2 hours
CPT Code Information
80204