Update Type: Test Down or Delayed
Test Updated: 07/17/2025
Test Overview
Test Methodology

Equilibrium dialysis and LC-MS/MS

Reference Range *

By report

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Monday - Sunday
Analytic Time

4 - 8 days

Soft Order Code
MTGRP
Synonyms
    Laboratory
    Sendout
    Reference Laboratory
    Mayo TGRP
    Section
    Special Testing
    Specimen Requirements
    Collection Instructions

    Collect specimen in red top tube (SST not acceptable). Spin and aliquot into a screw capped, plastic tube and send to Specimen Processing, refrigerated. Not for use for Michigan Medicine patients and physicians. MLab clients only

    Normal Volume
    2.5 mL serum
    Minimum Volume
    1 mL serum
    Additional Information

    Test performed by Mayo Clinic Laboratories

    Billing
    CPT Code
    84402, 84403
    Fee Code
    AA480, AA479
    NY State Approved
    No