Pharmacy Math and Conversions Flashcards
Convert 1 CC to mL
1 CC= 1 mL
How many mL in a tsp?
5 mL in one teaspoon
How many mL in a tbsp?
15 mL in one tablespoon
How many mL in an ounce?
30 mL in one ounce
How many mL in a pint?
480 mL in one pint
How many mL in a gallon?
3785 mL in one gallon
How many tsp in a tbsp?
3 teaspoons in one tablespoon
How many tablespoons in an ounce?
2 tablespoons in one ounce
How many fl ounces in a pint?
16 ounces in a pint
How many pints in a quart?
2 pints in one quart
How many quarts in a gallon?
4 quarts in a gallon
How many grams in a microgram?
10E-6
How many grams in a milligram?
10E-3
How many pounds in a kilogram?
2.2 pounds in one kilogram
How many ounces in a pound?
16 ounces in a pound
What is the equation to convert Fahrenheit to Celsius?
F= (9/5)C+32
What quantity is roman numeral: L
50
What quantity is roman numeral: D
500
What quantity is roman numeral: M
1000
What quantity is roman numeral: X
10
What quantity is roman numeral: V
5
What quantity is roman numeral: C
100
What quantity is roman numeral: SS
1/2
What are some rules for roman numerals?
If one or more letters are placed after another letter of greater value, add that amount.
- If a letter of lower value is placed before another letter of greater value, the lower value is subtracted from the higher value.
- First look for and do the subtractions, then add together the remaining values.
- A letter can only repeat three times.
- V, L and D are never subtracted or repeated.
What is Clark’s Rule?
Adult Dose x (Weight/150)= Childs Dose
What is Young’s Rule?
Adult Dose x (Age/(Age+12))= Child’s Dose
Equation for Dilution
C1V1=C2V2
Equations for IV calculations.
- Volume/Time= Rate
- Volume/Rate= Time
- Rate x Time= Volume
What is a drop factor? (IV)
IV Infusion devices are calibrated to deliver so many Drops per Milliliter.
What is the flow rate? (IV)
A nurse will set the device to dispense so many drops per minute in order to achieve the proper ml/min.
How many micrograms in a milligram?
1000 micrograms in a milligram
What are the units in the W/V concentration?
g/100 mL
What are the units in the V/V concentration?
1 mL/ 100 mL
What are the units in the W/W concentration?
1 gm/ 100 gm
How do you set up an alligation problem?
- Tic Tac Toe Board.
- Top Left/ Bottom left= what you have
- middle= what you need
- Subtraction
- Result: top right/ bottom right give parts of each value in top left/bottom left.
What is markup percentage?
Markup is the percentage over the wholesale price of a product and represents the profit made on that product.
What are the basic components of pharmokinetics?
- Absorb
- Distribute
- Metabolism
- Eliminate
What is the equation for Body Surface Area (meters squared)?
sq root[ (inches x pounds)/(3131) ]