Ontario Paramedic Practice Exam

Epinephrine is a medication used to treat bronchoconstriction, or narrowing of the airways in the lungs. It works by relaxing the muscles in the airway, allowing for easier breathing. The dosing requirement for epinephrine can vary depending on the condition being treated. In the case of bronchoconstriction, the recommended dosage is 0.01mg/kg. Option A (0.005mg/kg) is too low of a dosage and may not be effective in treating bronchoconstriction. Option C (0.015mg/kg) and D (0.02mg/kg) are both higher than the recommended dosage and may increase the risk of side effects. Therefore, option B is the most appropriate and effective dosage for treating bronchoconstriction with epinephrine.