Fundamentals of Pharmaceutical Calculations (Part 1) Fraction, Decimal, Fractions and Percentage Flashcards
At the end of the lesson, the students must have: Executed common and decimal fractions, percentage equivalent, expression in ratio, proportion, variation, percentage and dimensional analysis in problem solving and use of significant figures in calculations.
the science of measurement, embracing both experimental and theoretical determinations at any level of uncertainty in any field of science and technology.
(International Bureau of Weights and Measures, BIPM 2004).
Metrology
area of study that applies to basic principles of
mathematics to the preparation and efficacious use of pharmaceutical preparations.
Pharmaceutical calculations
What are: The Units of Measurement
- International Systems of Units (SI)
- Avoirdupois System
- Apothecaries’ System of Measurement
is referred to as the metric system
International Systems of Units (SI)
is the common system of commerce
Avoirdupois System
is the traditional system pharmaceutical
measurement
Apothecaries’ System of Measurement
is the official system for weights and measures in the
United States Pharmacopeia-National Formulary.
International System of Units (SI)
Apothecaries’ Fluid Measure:
fluidrachm or fluidram (ʒ) -> minims
60 minims
Apothecaries’ Fluid Measure:
fluidounce (fl oz) -> fluidrachms
8 fluidrachm (or 480 minims)
Apothecaries’ Fluid Measure:
fluidounce (fl oz) -> minims
480 minims
Apothecaries’ Fluid Measure:
pint (pt) -> fluidounces
16 fluidounces
Apothecaries’ Fluid Measure:
quart (qt) -> pints
2 pints (32 fluidounces)
Apothecaries’ Fluid Measure:
quart (qt) -> fluidounces
32 fluidounces
Apothecaries’ Fluid Measure:
gallon (gal) -> quarts
4 quarts (8 pints)
Apothecaries’ Fluid Measure:
gallon (gal) -> pints
8 pints
Apothecaries’ Measure of Weight:
scruple -> grains
20 grains (gr)
Apothecaries’ Measure of Weight:
drachm or dram (ʒ) -> scruples
3 scruples (60 grains)
Apothecaries’ Measure of Weight:
drachm or dram (ʒ) -> grains
60 grains