Deck 34: Pharmacology Math

Question 1

If the drug label states, "250 mg/mL," this means that each tablet has 250 mg of the drug.

Answer 1

False

Question 2

With the standard formula, the "ordered strength" of a drug is the amount of the drug identified on the label.

Answer 2

False

Question 3

When a powdered injectable medication is to be mixed with a solvent, the label states how much sterile solution to add.

Answer 3

True

Question 4

For pediatric doses, it is important to round calculations to the nearest tenth for accuracy of the medication dosage.

Question 5

The lot number of the drug is an important item on the label, in case the medication is recalled by the pharmaceutical company that produced it.

Question 6

The units of measure mL and cc are not the same.

Question 7

The meter is the measurement of length in the apothecary system.

Question 8

The basic unit of volume for a liquid medication in the apothecary system is the gtt.

Question 9

To prevent dosage errors, use a zero before and a terminal zero after the decimal point.

Question 10

If the physician orders 10 gr of a medication, but the label states, "20 mg/tab," the medical assistant first must convert the label dose of 20 mg to the physician's ordered unit of measurement, which is grains.

Question 11

The correct dosage of a medication may depend on the patient's age, weight, and state of health or on what other drugs the patient may be taking.

Question 12

The basic measure of weight in the household system is the pound (lb).

Question 13

If a tablet is scored, the medication has been manufactured with an impression or a groove down the center of the tablet.

Question 14

The value 0.25 is equal to 25.0% and is commonly written as 25%.

Question 15

The physician orders 140 mcg of a drug, which is equal to 1.4 mg.

Question 16

If a medication has been on the market for a long time, the generic name may be the only one listed on the label.

Question 17

To convert a smaller unit of measurement to a larger one in the metric system, move the decimal point three places to the right.

Question 18

The solvent is the powdered base of a drug that must be mixed with a sterile liquid before administration.

Question 19

To convert a larger unit of measure to a smaller one in the metric system, move the decimal point three spaces to the left.

Question 20

A drug label that states the percentage of the drug in the container (e.g., 4%) is identifying the dose of the medication to be administered.

Question 21

Which of the following is a metric unit of volume?

A)ounce
B)mL
C)mg

Question 22

Your patient is to receive Precef 20 mg/kg every 12 hours.The patient weighs 88 pounds.What is the correct dose?

A)500 mg
B)600 mg
C)800 mg
D)1,000 mg

Question 23

You need to give Lanoxin 0.125 mg.All you have is 0.250-mg tablets.How much do you give?

A)2 tablets
B)5 tablets
C)1/2 tablet

Question 24

How many milligrams equal 0.75 g?

A)75 mg
B)750 mg
C)7.5 mg
D)7,500 mg

Question 25

Which of the following is a metric unit of length?

A)cm
B)mL
C)mg
D)kg

Question 26

How many cubic centimeters equal 2.5 teaspoons?

A)10 cc
B)15 cc
C)5 cc
D)12.5 cc

Question 27

The formula for calculating pediatric doses by weight in comparison to the average adult weight is called:

A)Fried's Law
B)Clark's Rule
C)Young's Rule
D)West's Nomogram

Question 28

How many liters equal 1,500 cc?

A)1.5 L
B)15 L
C)150 L
D)0.15 L

Question 29

One teaspoon is equal to _____ mL.

A)5
B)15
C)30
D)60

Question 30

How many milligrams equal 150 mcg?

A)0.015 mg
B)0.15 mg
C)1.5 mg
D)15 mg

Question 31

One fluid ounce is equal to ____ mL.

A)20
B)15
C)25
D)30

Question 32

How many milliliters equal 45 minims?

A)3 mL
B)30 mL
C)5 mL
D)0.5 mL

Question 33

Which of the following is a household measure?

A)gram
B)grain
C)drop
D)cc

Question 34

How many fluid ounces equal 90 mL?

A)20 fl oz
B)3.5 fl oz
C)3 fl oz
D)4 fl oz

Question 35

Which of the following is an apothecary measure?

A)gram
B)grain
C)ounce
D)cc

Question 36

In the formula D/H ´ Q, the H stands for the:

A)child's height
B)hour the medication is ordered
C)dosage strength identified on the label
D)amount of drug identified on the label

Question 37

How many tablespoons equal 16 ounces?

A)8 Tbsp
B)32 Tbsp
C)24 Tbsp
D)12 Tbsp

Question 38

A child who weighs 70 pounds weighs how many kilograms?

A)140 kg
B)154 kg
C)32 kg
D)30 kg

Question 39

The formula for calculating pediatric doses based on the BSA is called:

A)Fried's Law
B)Clark's Rule
C)Young's Rule
D)West's Nomogram

Question 40

How many grains equal 1.2 grams?

A)36 grains
B)16.2 grains
C)18 grains
D)9 grains

Question 41

What is the answer for the proportion 6:4 = 3:x?

A)2
B)4
C)1
D)3

Question 42

To convert liters to milliliters:

A)multiply by 10
B)divide by 100
C)multiply by 1,000
D)divide by 1,000

Question 43

The metric system of weights and measures is a decimal system based on units of:

A)1
B)10
C)100
D)5

Question 44

A total of 180 mg of a medication is to be taken each day, and the medication is ordered tid.What would be the individual dose?

A)45 mg
B)90 mg
C)36 mg
D)60 mg

Question 45

The physician prescribes 45 grains of a medication, but the label is measured in grams.How much medication would you administer?

A)2.5 g
B)3 dr
C)3 g
D)2.8 g

Question 46

The physician orders 75 mg of Demerol IM.The drug label states,"Demerol 50 mg/mL." How many milliliters should be administered?

A)1 mL
B)1.2 mL
C)1.5 mL
D)2.1 mL

Question 47

The physician prescribes 0.25 g of penicillin.The available drug is 250 mg/tablet.What would you administer to the patient?

A)2 tabs
B)1 tab
C)2.5 tabs
D)1.5 tabs

Question 48

The prefix milli in the metric system means :

A)1/100
B)0.001
C)1/10
D)1/1,000
E)B and D

Question 49

The physician orders 7.5 mL of Cipro for a pediatric patient.How many teaspoons should the parent administer?

A)7.5 tsp
B)1.5 tsp
C)3 tsp
D)1 tsp

Question 50

Which of the following is true about a drug's brand name on a medication label?

A)The generic name is always listed on the label before the brand name.
B)The brand name must be listed on all drug labels.
C)The brand name is followed by a symbol that designates copyright protection.
D)If a medication is stocked as a generic drug, the brand name is listed under the generic name.

Question 51

A physician prescribes administration of 100 mg of a drug.The drug label states that there are 150 mg per milliliter in a multidose vial that contains 5 mL.What is the available amount of the drug, according to the standard formula?

A)150 mg
B)5 mL
C)100 mg
D)1 mL

Question 52

One inch is equal to ____ cm.

A)1.5
B)2
C)4
D)2.5

Question 53

What is the ratio for the decimal 0.20?

A)2:4
B)2:5
C)1:5
D)1:6

Question 54

Which of the following equivalents is true?

A)1 fl dr = 4
B)3 tsp = 1 Tbsp = 15 mL.
C)4 fl oz = 10 mL.
D)15 gr = 100 mg.

Question 55

The physician prescribes 0.5 g of ampicillin.The label states, "Ampicillin 500 mg/5 mL." How many milliliters should be administered?

A)25 mL
B)5 mL
C)2.5 mL
D)1 mL

Question 56

The physician prescribes 0.125 mg of Synthroid.On hand you have 0.25-mg tabs.What should you administer?

A)1/2 tab
B)2 tabs
C)2 1/2 tabs
D)1 tab

Question 57

The physician prescribes 500 mg of Keflex.The available dose is 1 g/tab.How many tablets should the patient receive.

A)2 tabs
B)1.5 tabs
C)1/2 tab
D)1.25 tabs

Question 58

How many ounces equal 150 mL?

A)50 oz
B)3.2 oz
C)32 oz
D)5 oz

Question 59

A pediatric patient weighing 20 pounds is prescribed amoxicillin; the label states that 10 mg/kg should be administered each day.What is the total daily dose?

A)91 mg/day
B)440 mg/day
C)90 mg/day
D)45 mg/day

Question 60

Convert 524 mg to

A)52,400 g
B)5,240 g
C)0.524 g
D)5.24 g

Question 61

The top number in a fraction is the __________.

Question 62

Medications delivered from the pharmacy in individual doses are called __________ packs.

Question 63

Always in a proportion, the problem is solved by __________.

Question 64

__________ is one way of expressing a fraction or division problem; it shows the relationship of the numerator to the denominator.

Question 65

Convert the following fractions into decimals, rounding the last digit as needed:

A)3/4 = ________
B)2/3 = ________
C)9/12 = _______
D)10/12 = _______

Question 66

Describe the three basic steps for calculating the prescribed dose of medication accurately.

Question 67

Convert the following improper fractions to whole number or decimal equivalents:

A)12/7 = ________
B)18/9 = ________
C)4/3 = ________
D)5/2 = ________

Question 68

The fraction 3/4 is an example of a(n) __________ fraction.

Question 69

Perform the following math problems with the fractions reduced to their lowest terms:

A)2/3 ´ 8/7 = ______
B)9/8 ÷ 6/10 = _____
C)3/4 ´ 1/2 = _____
D)2/5 ÷ 2/3 = _____

Question 70

Correctly convert the following metric units of measurement:

A)14 mcg = ____ mg
B)3.7 g = ____ kg
C)1.12 kg = ____ g
D)0.33 L = ____ mL
E)49.6 mg = ____ g f.96.4 mL = ____ L

Question 71

The comparison of two ratios is called a(n) __________.

Question 72

Round the following calculations to the nearest tenth:

A)1.673
B)7.829
C)4.556
D)9.16
E)12.325

Question 73

__________ uses a calculation of the body surface area (BSA) of infants and young children to determine the pediatric dose.

Question 74

__________ is based on the weight of the child.

Question 75

The average adult __________ is 1.7 m².

Question 76

Convert the following:

A) 23 lb = ____ kg
B) 286 lb = ____ kg
C) 220 lb = ____ kg
D) 15.6 kg = ____ lb
E) 3 kg = ____ lb f. 98 kg = ____ lb

Question 77

The fraction 9/8 is an example of a(n) __________ fraction.

Question 78

The __________ system of measurement is the most common measurement system used in pharmacology throughout the world.

Question 79

Explain the steps in determining a single pediatric dose of medication based on the child's weight of 42 pounds; the medication label states: Administer 6 mg/kg qid.

Question 80

The __________ is the bottom number of a fraction.