A nursing instructor is describing how to perform dosage calculations using dimensional analysis. Which of the following would the instructor emphasize to ensure accuracy?
A) A formula that is specific to the drug being administered is needed.
B) Decimals rather than fractions are used to determine amounts.
C) Proportions are needed but labels related to units are not important.
D) The focus is on the unit of measure set up in a specific order.
Ans: D
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Dimensional analysis is a method used to perform calculations where the focus is on the units of measure, thereby eliminating the need to memorize equations. Because the units are set up in a specific order, it eliminates the need to be concerned about setting up proportions correctly. When using DA to calculate dosage problems, dosages are written as common fractions.
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