Lab Test Details
|
SIM |
50205 |
|
CPT |
80299 |
|
Synonyms |
MTX |
|
Specimen Type |
Serum |
|
Container |
4.0 ml Gold-top serum separator |
|
Collection Instructions |
None |
|
Volume |
2 ml serum, minimum 0.5 ml |
|
Additional Information |
Specimens from patients who have received preparations of mouse monoclonal antibodies for diagnosis or therapy may contain human anti-mouse antibodies (HAMA). HAMA present in serum may interfere in this assay. These samples should not be assayed with the MTX assay. |
|
Patient Preparation |
none |
|
Specimen Processing Instructions |
Serum: Allow to clot. Centrifuge at 3380 rpm’s (±100) for a minimum of 10 minutes Centrifuge within 2 hours of collection. Protect from Light if not stored in a dark refrigerated. |
|
Transport Requirements |
Refrigerated |
|
Specimen Stability |
Room temperature: 8 hours Refrigerated: 24 hours |
|
Rejection Criteria |
If not centrifuged within 2 hours of collection. |
|
Reference Range |
NO NORMAL VALUES. Lowest reportable = less than 0.2 umol/L |
|
Critical Value |
none |
|
Test Includes |
Methotrexate |
|
Methodology |
Enzyme Immunoassay |
|
Testing Frequency |
Daily, Monday - Sunday |
|
|
|
|
Reviewed By |
Crystal M. Killian |
|
Reviewed Date |
3/18/2021 |
|
Supplemental |
|