Suppose that C is the concentration of a drug in the bloodstream t
hours after the initial dose is administered. Suppose the initial
dose Co was 191.8 µg / mL and suppose that 189 µg / mL is
administered every hour. If the body metabolizes and eliminates 35%
of the concentration of drug C; in a period of one hour; determine
C2, the concentration of the drug in the bloodstream two hours
after the initial dose is administered.
Suppose Ct is the concentration of a drug in the
bloodstream t hours after the initial dose is administered. Suppose
the initial dose C2was 217.6 ug/mL and
suppose that every hour is administered 174 g/mL. If the body
metabolizes and eliminates 54% of the concentration of the drug
Ct over a period of one hour; determine C2,
the concentration of the drug in the bloodstream two hours after
the initial dose is administered.
Response at two decimal valors.
The concentration of a drug in the body decreases exponentially
after a dosage is given. In one clinical study, adult subjects
averaged 14 micrograms/milliliter (mcg/mL) of the drug in their
blood plasma 1 hr after a 1000-mg dosage and 3
micrograms/milliliter 4 hr after dosage.
a) Find the value k, and write an equation for an exponential
function that can be used to predict the concentration of the
drug, in micrograms/milliliter, t hours after a 1000-mg
dosage.
b) Estimate the...
For the following exercises, use this scenario: A doctor prescribes 300 milligrams of a therapeutic drug that decays by about 17% each hour.Write an exponential model representing the amount of the drug remaining in the patient’s system after t hours. Then use the formula to find the amount of the drug that would remain in the patient’s system after 24 hours. Round to the nearest hundredth of a gram.
13. The dose of a drug is 50 mg per 22 pounds body weight. How
many milligrams should be given to a patient weighing 30 kilograms?
Show your work.
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14. The dose of a drug is 25 mg per kilogram body weight. How
many grams are required for a patient weighing 110 pounds? Show
your work.
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15. The pediatric dose of Phenytoin is 4 to 8 mg/kg/ in divided
doses. Calculate the amount of medication in milligrams
administered...
After a patient consumes a medication, the amount of drug that
remains in the body decays exponentially. Suppose a patient takes
an 800 mg tablet of a given drug, and after 4.5 hours, only 550 mg
remains. When will there be only 25 mg of the drug remaining? What
is the drug's half-life?
Cholesterol (mg/dL) was measured in the same patients before and
after taking drug D. Do a Wilcoxon signed-rank test for paired
samples: state the null and (non-directional) alternative
hypotheses, calculate (or bound) the p- value, and clearly state
your conclusion for significance level ? = 0.05. The appropriate
table is at the end of the quiz.
Before. After
200 250
190 245
180 175
190 188
180 500
200 260
190 260
190 230
a) Why would you do...
Please show work.
1. Ordered: Ticarcillin 1000 mg IV q 6 hours to be administered
in a total of 50 ml of NSS and infused over 30 minutes.
a. The pharmacy sends a 1 gram vial of Ticarcillin in powdered
form for reconstitution. Directions state: “add 4.2 ml of sterile
water for injection and shake well. The resultant solution will
yield a concentration of 200 mg/ml”. How many ml will the nurse
draw up from the vial once reconstituted?
b....
42)In a chemical reaction, the amount of grams, Q, of a
substance produced in t hours is Q(t) = 40t – 5t2.
(a)How many grams, Q, are present at t = 2 ?
(b) Find the rate that the
substance is being produced at t = 3.
(c) At what time, t, is the reaction no longer changing?
Suppose ?(?) represents the number of bacteria in a dish t hours
after the start of a lab experiment. a) Interpret the meaning of
?(20) = 100
100 is the average rate of change in the number of bacteria
after 20 hours.
100 is the rate of change in the number of bacteria after 20
hours.
After 20 hours, there are 100 bacteria in the dish.
100 is the total change in the number of bacteria between the
first hour...