Test Code LAB1071 Methotrexate, Plasma or Serum
Additional Codes
Test Name in EPIC | EPIC Test Code | Mnemonic |
---|---|---|
METHOTREXATE | LAB1071 | METHO |
Methodology
Fluorescence Polarization Immunoassay (FPIA)
Specimen Requirements
Submit only 1 of the following specimens:
Preferred:
Specimen Type: Plasma
Container/Tube: Light-green top (lithium heparin gel)
Specimen Volume: 1 mL
Specimen Minimum Volume: 0.5 mL
Collection Instructions:
1. Separate plasma from cells within 2 hours of draw.
2. If plunger filters are used, immediate removal of serum
is indicated unless an air gap can be created between the device
and specimen.
Additional Information:
1. Protect specimen from light.
2. Label specimen appropriately (plasma).
Alternate:
Specimen Type: Serum
Container/Tube: Serum gel
Specimen Volume: 1 mL
Specimen Minimum Volume: 0.5 mL
Collection Instructions:
1. Separate serum from cells within 2 hours of draw.
2. If plunger filters are used, immediate removal of serum is indicated unless an air gap can be created between the device and specimen.
Additional Information:
1. Protect specimen from light.
2. Label specimen appropriately (serum).
Specimen Transport Temperature
Refrigerate 24 hours/Frozen OK/Ambient NO
Day(s) Test Set Up
Monday through Sunday
Performing Laboratory
Chemistry-
SMDC Clinical Lab
Test Classification and CPT Coding
80204
Reference Values
0-0.10 µmol/L
Non-toxic drug concentration after 48 hours: <0.1 µmol/L