A drug has an initial plasma concentration of 96 g/mL at time zero. Given a half-life of 2 hours, what will be the plasma concentration after 10 hours?

Explanation

Starting with 96 g/mL and a half-life of 2 hours, the drug concentration halves every 2 hours. After 10 hours (which is 5 half-lives), the concentration is 96 / 2^5 = 96 / 32 = 3 g/mL.