FCA1-0763

FCA1-0763

Drug X, a new intravenous induction drug, is being administered as a bolus at regular time intervals, and the following data were observed:

Time following injection (hours) vs Plasma concentration of drug X (mcg/mL)
2 / 400
6 / 100
10 / 25
14 / 6.25

Which of the following values estimate the plasma half-life (T½) of drug X?