Chapter 7; pharmacy calculations and measurment systems Flashcards
apothecaries’ system
used before the metric system was introduced; used to measure liquid volume (unit is the minim) and solid weight (unit is the grain)
avoirdupois system
means goods sold by weight, used for ordering and purchasing some pharmaceutical products and for weighing patients
body surface area (BSA):
the area covered by a person’s external skin
dimensional analysis
method of problem solving used when two quantities are directly proportional to each other
drip rate:
the number of drops of solutions infused per minute
flow rate
the number of milliliters of fluids administered per hour or per minute
infusion time
volume to be infused divided by flow rate
metric system
most widely used system for measuring drugs, a decimal system for measuring drugs, a decimal system based on the number 10 and multiples and subdivisions of 10
percent
parts per hundred; another way to express fractions and numerical relationships
twenty-four-hour time
also called military time, method of keeping time by numbering the hours from 1 to 24 rather than 1 to 12 twice