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Test ID BLOD1008 Methotrexate Post Leuco Dose

Specimen Type/Requirements

Red top (Serum w/out gel) - Serum

 

Do Not Use Serum Separator Gels.

 

Test is not affected by hemolysis or lipemia. 

Specimen Volume

 

Preferred Volume    1.0 mL   
Minimum Volume    1.0 mL  

 

Stability/Transport

 

Room Temperature    1 day     
Refrigerated    14 days    preferred for transport   
Frozen    indefinitely     

 

Performed Test Frequency

Monday through Sunday

Methodology

Enzyme Immunoassay

Performing Lab

Sanford Laboratories Sioux Falls

Additional Information

Specimens from patients who have received glucarpidase (carboxypeptidase G2) as a high dose methotrexate rescue therapy should not be tested with this method. These patients have an increased level of metabolite that cross reacts with the methotrexate antibody. These metabolites stay in circulation for 5-7 days.

CPT

80299

Interface Build Information

Result Code  Result Code Description 
2716 Methotrexate Post