Results 1 to 2 of 2

Math Help - Half Life-- Differential Equation-- Decay Question!

  1. #1
    Newbie
    Joined
    Mar 2012
    From
    United States
    Posts
    3

    Half Life-- Differential Equation-- Decay Question!

    For an operation a dog is anesthetized with sodium pentobarbitol, which is eliminated exponentially from the blood stream. Assume that of any sodium pentobarbitol in the blood stream, half is eliminated in 5 hours. Assume also that to anesthetize a dog, 20 milligrams of sodium pentobarbitol are required for each kilogram of body weight. What single does of sodium pentobarbitol would be required to anesthetize a dog weighing 10 kilograms for half an hour?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Apr 2005
    Posts
    16,444
    Thanks
    1863

    Re: Half Life-- Differential Equation-- Decay Question!

    Half an hour is (1/2)/5= 1/10 of the "half life" period. If the initial dose is "A", what will be left after that time? Set that equal to 20(10)= 200 milligrams and solve for A.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Half Life Question
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: January 23rd 2010, 07:40 PM
  2. Half life question
    Posted in the Pre-Calculus Forum
    Replies: 6
    Last Post: June 17th 2009, 10:20 PM
  3. Half Life and Decay
    Posted in the Pre-Calculus Forum
    Replies: 5
    Last Post: May 18th 2009, 02:22 PM
  4. Half Life Question
    Posted in the Calculus Forum
    Replies: 2
    Last Post: April 1st 2009, 09:59 PM
  5. half life of a decay process
    Posted in the Pre-Calculus Forum
    Replies: 3
    Last Post: February 15th 2008, 08:48 PM

Search Tags


/mathhelpforum @mathhelpforum