A
5200 Harry Hines Blvd.
,
Dallas
,
TX
75235
Search Tests
Search by Dept.
General Information
Alias: Methotrexate
Performed: 24 Hours
Turn Around Time: Med Emerg: 2 hours; Routine: 4 hrs
Performed By: LL Chemistry
Notes: Methotrexate has variable pharmacokinetics. Combined laboratory and clinical assessment required for interpretation.
Clinical Utility:
Random: Variable
Expected Values: <=10 micmol/L at 24 hrs
<=1.0 micmol/L at 48 hrs
<0.2 micmol/L at 72 hrs
The Following suggest delayed elimination and risk of toxicity:
>=50 micmol/L at 24 hrs
>=5.0 micmol/L at 48 hrs
>0.2 micmol/L at 72 hrs
Components
Name |
Method |
Sex |
Age Range |
Ref. Range Low |
Ref. Range High |
Units |
Methotrexate |
Homogenous Enzyme Immunoassay |
|
|
0 |
|
mcmol/L |
Specimen Requirements
Type |
Container |
Volume |
Units |
Collection / Delivery |
Storage / Transport |
Off Campus |
Blood |
Red w/ No Gel, 6mL COPC |
Fill Tube |
|
Avoid Hemolysis. Please deliver to Logistics Laboratory. |
Room Temperature |
Serum should be separated from cells within 2hrs of collection. Deliver refrigerated serum aliquot to Logistics lab. |