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Dosage Calculations. In Exercise, use the

Chapter 4, Problem 26BSC

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QUESTION:

Problem 26BSC

 

Dosage Calculations. In Exercise, use the data in the accompanying table, which lists the numbers of correct and wrong dosage amounts calculated by physicians. In a research experiment, one group of physicians was given bottles of epinephrine labeled with aconcentration of “1 milligram in 1milliliter solution,” and another group of physicians was given bottles labeled with a ratio of “1milliliterof a 1:1000 solution.” The two labels describe the exact same amount, and the physicians were instructed to administer 0.12 milligrams of epinephrine. The results were reported in the New York Times.

 

Correct Dosage Calculation

Wrong Dosage Calculation

Concentration Label

(“1 milligram in 1 milliliter solution”)

11

3

Ratio Label

(“1 milliliter of a 1:1000 solution”)

2

12

Which Group Did Worse?

a. For the physicians given the bottles labeled with a concentration, find the percentage of wrong dosage calculations; then express it as a probability.

b. For the physicians given the bottles labeled with a ratio, find the percentage of wrong dosage calculations; then express it as a probability.

c. Does it appear that either group did worse? What does the result suggest about drug labels?

Questions & Answers

QUESTION:

Problem 26BSC

 

Dosage Calculations. In Exercise, use the data in the accompanying table, which lists the numbers of correct and wrong dosage amounts calculated by physicians. In a research experiment, one group of physicians was given bottles of epinephrine labeled with aconcentration of “1 milligram in 1milliliter solution,” and another group of physicians was given bottles labeled with a ratio of “1milliliterof a 1:1000 solution.” The two labels describe the exact same amount, and the physicians were instructed to administer 0.12 milligrams of epinephrine. The results were reported in the New York Times.

 

Correct Dosage Calculation

Wrong Dosage Calculation

Concentration Label

(“1 milligram in 1 milliliter solution”)

11

3

Ratio Label

(“1 milliliter of a 1:1000 solution”)

2

12

Which Group Did Worse?

a. For the physicians given the bottles labeled with a concentration, find the percentage of wrong dosage calculations; then express it as a probability.

b. For the physicians given the bottles labeled with a ratio, find the percentage of wrong dosage calculations; then express it as a probability.

c. Does it appear that either group did worse? What does the result suggest about drug labels?

ANSWER:

Solution 26BSC

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