Methotrexate, Plasma (Plasma / Serum)

Department

Core Biochemistry

Delphic Registration Code

MTX

Synonyms

Ledertrexate
Methoblastin

Turnaround Time

3 hours

Test Code

4723

Specimen Type

• Serum
• Plasma

Specimen Requirements

Tube/Container Type:

Preferred

• Lithium Heparin - Non-gel (Green Cap)

Acceptable

• Serum (Red Cap)
• SST II (Gold Cap)
• Lithium Heparin - Gel (Green Cap)

Preferred Sample Volume (ml)

4.5

No of Samples Required

1

Aliquot Instructions

Sample Type

• Serum
• Plasma

Minimum Volume (ml)

0.5

Transport to Lab

Chilled (2 - 8 degrees Celsius)
If overnight - Chilled (2 - 8 degrees Celsius)

Reference Intervals

Therapeutic Range N/A

For further information, please refer to chemical pathologist

Test Method

Homogeneous enzyme immunoassay performed on Beckman Coulter AU5822 analysers using ARK Diagnostics reagents.

Non-Funded Test Cost

$64.32 (Exclusive of GST)

Billing Code

4723

Community requests will not be processed --> Methotrexate level will not be performed as it is only indicated for monitoring of high dose methotrexate in an in-patient setting. The specimen will be held for seven days awaiting further instructions. Please phone the laboratory if analysis is still required.

Contact Information

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