Theophylline
| Category | Biochemistry |
|---|---|
| Test background |
Theophylline is primarily a bronchial dilator, indicated in the treatment of reversible airways obstruction, such as COPD and severe acute asthma. |
| Clinical Indications |
Therapeutic drug monitoring Assessment of toxicity: symptoms include tachycardia, palpitation, nausea and other gastrointestinal disturbances, headache, CNS stimulation, insomnia, arrhythmias and convulsions, especially if given rapidly by intravenous injection |
| Reference range | 10-20 mg/L |
| Sample & container required | SST (gold top) |
| Sample volume | 0.5 mL |
| Turnaround time | 1 day |