If an 80 mg. dose of a drug were administered to a patient, and the drug has a half life of 2 hours, how many milligrams remain in the body at the end of 3 hours? With time in hours on the x axis and dose in mg on the y axis, plot six half-lives of the dose-response curve for the drug.
2007-10-27 10:32:30 · 1 answers · asked by Wilma 1 in Science & Mathematics ➔ Medicine
Assuming that 100% of the drug is absorbed and bioavailable, there would be about 30 mg left at 3 hours with a two hour half life and an 80 mg dose.
At 2 hour intervals from complete absorption, the amounts left ideally would be 40, 20, 10, 5, 2.5,1.25mg for six two hour half lives. Draw a simple curve starting with 80 mg on the Y axis and two hour intervals X 6 on the x- axis. It will be a straight line rather than a "curve".
2007-10-27 12:35:00 · answer #1 · answered by Spreedog 7 · 0⤊ 0⤋