THEOPHYLINE
01 Overview
02 Details
Why Get Tested?
To determine the concentration of theophylline or caffeine in the blood to establish an appropriate dose and to maintain a therapeutic level.
When to Get Tested?
At the start of drug therapy and at regular intervals to monitor the drug’s concentration; when indicated, to detect low or excessive (potentially toxic) concentrations.
Sample Required?
A blood sample drawn from a vein in your arm or from pricking an infant’s heel.
Test Preparation Needed?
None