Theophylline
Marker1 mL serum collected in a red-top tube(no gel)
Drug & Alcohol Testing
1 provider available
Starting at
$119
Walk-In Lab
Lowest PriceOnlineTheophylline Blood Test
The Theophylline Blood Test checks the level of theophylline in your blood to make sure the medication is working safely and effectively for breathing problems like asthma or COPD, while helping avoid harmful side effects.
Updated 7/22/2025
$119
Order Test