Three medical students (X, Y, and Z) studying for their physiology final develop headaches
Student X takes a regular aspirin with a glass of water; Y takes an enteric coated aspirin with a glass of water, and Z takes an enteric coated aspirin with a glass of milk (an enteric coating is one that dissolves only when the pH is above 6). Assuming that headache relief is proportional to plasma aspirin concentrations, and that Xt, Yt, and Zt are the times until relief is experienced by the respective students, which of the following best represents the relationship between Xt, Yt, and Zt?
A. Xt = Yt = Zt
B. Xt > Yt = Zt
C. Xt < Yt < Zt
D. Xt = Yt > Zt
E. Xt > Yt > Zt
ANS: C
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