Solved: Morphine is often used as a pain-relieving drug. The halflife of morphine in the
Chapter 11, Problem 17(choose chapter or problem)
Morphine is often used as a pain-relieving drug. The halflife of morphine in the body is 2 hours. Suppose morphine is administered to a patient intravenously at a rate of 2.5 mg per hour, and the rate at which the morphine is eliminated is proportional to the amount present. (a) Use the half-life to show that, to three decimal places, the constant of proportionality for the rate at which morphine leaves the body (in mg/hour) is k = 0.347. (b) Write a differential equation for the quantity, Q, of morphine in the blood after t hours. (c) Use the differential equation to find the equilibrium solution. (This is the long-term amount of morphine in the body, once the system has stabilized.)
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