1.5 mL of a solution containing 20 mg/mL of Evans blue dye is injected into plasma, the final concentration of the dye is 0.015 mg/mL, the volume of the plasma is:: (A) 1 L, (B) 2 L, (C) 3 L, (D) 4 L
Answer is B. Volume of plasma = volume of dye injected / final concentration of the dye Volume of dye injected = 1.5 * 20 = 30 mg Volume of plasma = 30/0.015 = 2000 mL