Pathology

Test & Collection Guide

PLEASE NOTE: Recent changes have been made to this Test

Recent changes for Methotrexate
Date	Field	Changed From	Changed To
1st February 2023	Laboratory	Referred Test	Biochemistry
	Collection & Request Instructions	Send ASAP (within 24 hrs, 7 days a week). Contact reference laboratory prior to sending the sample.	Testing performed on an as needs basis.
	External Laboratory	Peter MacCallum Cancer Institute
	Method		Hand deliover samples to Biochemistry DO NOT load onto the 8100

Methotrexate

Ordering information:

Please call the Biochemistry Department on 22008 to inform them that Methotrexate samples are being sent to Pathology.

Laboratory:

Biochemistry

Test Code:

MTX

Specimen types:

Serum

Container types:

Serum tube with gel

Collection Instructions:

Transport specimen at Room Temperature to lab

Testing performed on an as needs basis.

Minimum Adult Volume:

2 mL

Paediatric Minimum Volume:

1 mL

Notes:

Please note time after dose

Frequency:

Daily

Result Turnaround Time:

24 hours

Reference Interval:

Eastern Health Guidelines recommend calcium folinate dosing continue until methotrexate levels < 0.05 umol/L. For specific dosing regimen and adjustments, please see relevant Oncology and Haematology Unit Cancer Guidelines.

Laboratory Use Only

Laboratory Notes:

Hand deliver samples to Biochemistry. DO NOT load onto the 8100

Test & Collection Guide

PLEASE NOTE: Recent changes have been made to this Test

Recent changes for Methotrexate

Date

Field

Changed From

Changed To

Laboratory

Collection & Request Instructions

External Laboratory

Method