Referred Tests
| Web: | mayocliniclabs.com |
|---|---|
| Email: | mcl@mayo.edu |
| Telephone: | 800-533-1710 |
| International: | +1 855-379-3115 |
| Values are valid only on day of printing. | |
Test ID: TACPK
Tacrolimus, Peak, Blood
Specimen Type 
Describes the specimen type validated for testing
Whole Blood EDTA
Necessary Information
Date of last dose, time of last dose, and dosage information are required.
Specimen Required Defines the optimal specimen required to perform the test and the preferred volume to complete testing
Container/Tube: Lavender top (EDTA)
Specimen Volume: 3 mL
Collection Instructions:
1. Do not centrifuge.
2. Send specimen in original tube.
Forms
If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.
Specimen Minimum Volume Defines the amount of sample necessary to provide a clinically relevant result as determined by the Testing Laboratory
1 mL
Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected
| Gross hemolysis | OK |
| Gros lipemia | OK |
| Gross icterus | OK |
Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Whole Blood EDTA | Refrigerated (preferred) | 14 days | |
| Ambient | 14 days | ||
| Frozen | 14 days |