At a Glance
Why Get Tested?
To measure the concentration of tacrolimus in the blood in order to establish the correct dose, maintain therapeutic levels and detect toxic levels
When to Get Tested?
As soon as tacrolimus therapy begins, frequently at first then at regular intervals to monitor concentrations over time
A blood sample taken from a vein in your arm
Test Preparation Needed?
Have the sample collected 12 hours after the last dose and/or immediately prior to the next dose or as directed by your doctor