Final answer
Aminophylline levels of around 20 micrograms/mL are associated with signs of toxicity, including symptoms such as nausea, rapid heartbeat, and seizures.
Step-by-step explanation:
Aminophylline is a medication used to treat respiratory conditions such as asthma and chronic obstructive pulmonary disease (COPD). It is a bronchodilator that works by relaxing the muscles in the airways, making it easier to breathe.
At higher levels, aminophylline can be toxic and lead to symptoms such as nausea, vomiting, headache, rapid heartbeat, and seizures. The toxicity level typically starts around 20 micrograms/mL. Taking too much aminophylline or having high levels in the bloodstream can be dangerous and require immediate medical attention.