Theophylline (Serum, Kims)

The Theophylline Serum test measures the concentration of theophylline, a bronchodilator used to treat asthma, chronic obstructive pulmonary disease (COPD), and other respiratory conditions. Therapeutic drug monitoring ensures that the drug stays within a safe and effective range.

This test is recommended for:

• Patients on theophylline therapy to monitor drug levels.
• Individuals experiencing side effects or suspected toxicity.
• Those whose symptoms are not responding to treatment.

A blood sample is collected and analyzed to determine the concentration of theophylline.

• Therapeutic range (10–20 µg/mL): Optimal drug concentration for effectiveness.
• Low levels: May indicate inadequate dosage, leading to ineffective symptom control.
• High levels: Suggest toxicity, which can cause side effects such as nausea, arrhythmias, and seizures.

Regular monitoring ensures theophylline remains within the therapeutic range, minimizing the risk of toxicity while maintaining symptom control.