Pharmaceutical calculations Flashcards
(35 cards)
The area of study that applies the basic principles of
mathematics to the preparation and safe and effective use
of pharmaceuticals.
Pharmaceutical Calculations
Portions of a whole
Common Fractions
When common fractions appear in a calculations problem, it
is often best to __________________.
Convert them to decimal fractions before solving
Fraction with a denominator of 10 or any power of 10 and is expressed
decimally rather than as a common fraction.
Decimal Fraction
To convert a decimal fraction to a common fraction,
express the decimal
fraction as a ratio and reduce.
The term percent and its corresponding sign, %, mean
“in a hundred.
Common fractions may be converted to percent by
dividing the
numerator by the denominator and multiplying by 100
Decimal Fractions may be converted to percent by multiplying
by
100
The relative magnitude of two quantities
Ratio
When two ratios have the same value, they are
equivalent
The expression of the equality of two ratios.
Proportion
Proportion may be written in any one of three standard forms
- a : b = c : d
- a : b :: c : d
- a/b = c/d
Outer Members
Extremes
: Middle Members
Means
The _____________ is a useful tool in solving many pharmaceutical
calculation problems.
Ratio and proportion method
Dimensional analysis is also known as
Factor Analysis
Factor-Label Method
Unit-Factor Method
This method involves the logical sequencing and placement of a series of
ratios (termed factors) into an equation.
Dimensional analysis
An alternative method to ratio and proportion in solving pharmaceutical
calculation problems.
Dimensional analysis
Are consecutive figures that express the value of a denominate
number accurately enough for a given purpose.
Significant figures
True or false: a zero between digits are insignificant
False
True or False: Zeros used only to show the location of the decimal point are not significant.
True
International system of units is also formerly called as
Metric system
Internationally recognized decimal system of weights
and measure
International system of units
Base unit for SI length
Meter