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ELLIST#75
MATH BASIC SKILLS CH 2 - RATIO, PROPORTION, PERCENT
| QUESTION | ANSWER |
|---|---|
| You are told to overfill a 4 oz bottle by 10%. How many extra milliliters will you add to the bottle (1oz = 30ml)? | 12ml |
| Using a calculator, how is a fraction converted to a decimal? | divide the numerator by the denominator |
| A vial of Rocephin has 500mg/3.4ml. The doctor wants a 125 mg dose for a patient. How many milliliters should be drawn into a syringe? | 0.85ml |
| Convert 3/8 to a percent. | 37.50% |
| What is the term for the numerical representation of the relationship of one part to a whole? | ratio |
| Convert 7.6% to a decimal. | 0.076 |
| Which is the weakest strength of hydrocortisone cream: 1%, 0.75%, 2.5%, 0.5%? | 0.50% |
| A physician orders gentamicin 425mg in 100ml of D5W to be given over 1 hour. If the stock gentamicin is 80mg/2ml, how many ml must be added to the 100ml bag of D5W? | 10.6ml |
| Which solution is equivalent to a 1:10 dextrose solution? | 10% dextrose |
| Write the ratio 1:2 as a fraction. | 1/2 |
| Write the following ratio as a fraction in lowest terms: 10:12 | 5/6 |
| Reduce the following fraction to lowest terms and write it as a ratio: 20/5 | 4:1 |
| Write the following ratio as a percent: 1:1000 | 0.1% |
| Write the following percent as a ratio: 75% | 3:4 |
| What does the ratio for epinephrine 1:10,000 represent in terms of concentration of drug in the solution? | 1 g of epinephrine in 10,000 L of the final solution |
| Write the following ratio as a fraction in lowest terms: 8:4 | 2/1 = 2 |
| Write the following decimal as a percent: 0.025 | 2.5% |
| What are the three rules for using the ratio-proportion method? | 1. three of the four amounts must be known 2. the numerators must have the same unit of measure 3. the denominators must have the same unit of measure |
| Solve the following ratio: 8:9 = x:72 | x = 64 |
| What is a ratio? | a numerical representation between one part of the whole and the whole or between two parts of the whole |
| What is a proportion? | an expression of equality between two ratios |
| What is the ratio proportion method? | a conversion method based on comparing a complete ratio to a ratio with a missing component |
| What is a percent? | the number of parts per 100 that can be written as a fraction, a decimal, or a ratio |
Created by:
pharmtechteach
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