Methotrexate

Pathology category

Biochemistry - referred tests

Code

METH

Referral code

Request form

Test information

Chemothyerpautic drug. Inhibits DNA synthesis. Useful in the management of lymphoblastic leukaemia, choriocarcinoma, carcinomas of breast and testes. State time of last dose (infusion)

Guidelines

Pre-analytical

Methotrexate levels are only available for patients on high dose monitoring

Reference range

see report

Tube type

Tube type info

SST

Special requirements

Serum

Minimum volume

100 uL

Assay frequency

TAT Inpatient (urgent)

TAT Inpatient

1 week

TAT GP/Outpatient

1 week

Referral lab

Department of Clinical Biochemistry, Queen Elizabeth Hospital, Birmingham