Methotrexate

Referred to Berkshire & Surrey Pathology Services, Frimley Park Hospital NHS Foundation Trust, Portsmouth Road, Frimley, Surrey GU16 7UJ
 

Alternative names, keywords

MTX

Samples required

Clotted blood (gold cap, 5 mL tube). Smaller tubes are available for paediatric samples.

Test indications

Only required in monitoring drug clearance in high dose IV therapy. These samples are routinely sent direct from the wards according to local protocols and NOT via the laboratory.

For patients on oral methotrexate, serum drug levels are not routinely required to monitor treatment. Monitor FBC, U&E and LFT.

Reference range

Undetectable 24h post iv dose.

Turnaround time

Referral lab quotes turnaround time of 1 day, however additional time must be allowed for packing, dispatch and delivery of sample, and return and processing of results.

Enquiries

Biochemistry (Referrals)