Deck 60: Review of Mathematics

Question 1

According to protocol, a nursing student is required to complete metric conversions to ensure accurate administration of medication dosage. What does this indicate?

A) A nurse must strictly follow the given medication orders.
B) A nurse must possess a good understanding of pharmacology.
C) A nurse must possess a basic understanding of mathematics.
D) A nurse must ask for the primary care provider's assistance.

Answer 1

A nurse must possess a basic understanding of mathematics.

Question 2

The mother states that she gave the child a teaspoon of cough syrup 3 hours ago. How many milliliters (mL) of syrup would the nurse document on the child's chart?

A) 1 mL
B) 2 mL
C) 4 mL
D) 5 mL

Answer 2

5 mL

Question 3

^{A nurse has been ordered to administer a client D5 1/}2 ^{NS 1,000 mL IV to run over 8} hours at the rate of 30 gtt/min. What does the abbreviation "gtt" mean?

A) Liter
B) Gram
C) Drop
D) Meter

Answer 3

Drop

Question 4

A home care nurse is required to administer one 5-grain adult aspirin a day to the client. The medication is available in the form of 325-mg scored tablets. The nurse is unsure of the proper conversion. What is the safest procedure to follow in this situation?

A) Consult another healthcare provider
B) Consult a laboratory instructor
C) Consult a registered nurse
D) Consult a pharmacist

Question 5

The nurse is ordered to dispense 1 L of saline for a dehydrated client via an IV line. What is the equivalent of this amount of saline in milliliters?

A) 10 mL
B) 100 mL
C) 1,000 mL
D) 10,000 mL

Question 6

The nurse is measuring a client's intake and output. What measurement unit would the nurse use to document the results?

A) Grams
B) Centimeters
C) Kilograms
D) Milliliter

Question 7

The nurse studying the metric system learns that the following measurement is used to measure volume:

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

Question 8

A nurse in a nutrition clinic is to give 2 cups of organic prune juice to a client every night. What unit will the nurse use to document the amount of juice according to the metric system of measurement?

A) Milliliter
B) Gram
C) Ounce
D) Unit

Question 9

A 6-month-old client has been prescribed 2.5 mL of a medication orally. The pharmacy label on the medication cup reads 5 mL, 10 mL, and 15 mL, respectively. Which step should the nurse follow?

A) Measure it approximately by taking the medication between 0 and 5 mL
B) Draw the medication in a syringe and then transfer it to a medication cup
C) Consult the attending physician for any doubts regarding drug administration
D) Round the prescribed dose of medication to the closest amount on the label

Question 10

A client diagnosed with insomnia was prescribed eszopiclone 2 mg orally before bedtime. The nurse was ordered to increase the dose by 250 mg weekly at 2- to 4-week intervals. How many milligrams more will the nurse give to increase the dose by 250 mg?

A) 0.25 mg
B) 0.025 mg
C) 2.50 mg
D) 25.0 mg

Question 11

The nurse is converting grams to milligrams. How would the nurse move the decimal point?

A) 2 places to the right
B) 2 places to the left
C) 3 places to the right
D) 3 places to the left

Question 12

In preparation for the delivery of anesthesia for surgery, an adult client's weight is measured and documented as 75 kg. This measurement is equivalent to how many pounds?

A) 150 lb
B) 165 lb
C) 175 lb
D) 200 lb

Question 13

The nurse determines that a newborn weighs 6 lb 7 oz. What would be the equivalent of this weight in grams?

A) 2,920 g
B) 2,980 g
C) 3,000 g
D) 3,200 g

Question 14

The nurse is documenting the administration of digoxin to a client. Which entry is written correctly?

A) Digoxin 0.25 mg PO QD
B) Digoxin .25 mg PO QD
C) Digoxin 1/4 mg PO QD
D) Digoxin 0.250 mg PO QD

Question 15

To convert medication dosages from one quantity to another, the nurse must know how to use ratio and proportion. Which is true about the ratio 2:4 :: 1:2?

A) This represents two unequal ratios separated by a double colon.
B) The numbers 4 and 2 are referred to as the extremes.
C) The numbers 2 and 2 are referred to as the means.
D) The proportion is referred to as a "valuable relationship."

Question 16

The nurse is applying the four rules of using rations and proportions to calculate medication dosages for clients. Which accurately describes one of these rules?

A) The product of the means is greater than the product of the extremes.
B) The product of the means multiplied by one extreme yields the other extreme.
C) The product of the extremes divided by one mean yields the other mean.
D) Whatever is done on one side of the "equals" sign is two times less than the other side.

Question 17

The nurse is calculating the dosage of penicillin to give to a client. The dose ordered is 250 mg and on hand is a 500-mg tablet. How many tablets would the nurse give the client?

A) Half a tablet
B) One tablet
C) One and one-half a tablet
D) Two tablets

Question 18

The nurse is ordered to administer amoxicillin, 500 mg PO. It is supplied as a liquid preparation containing 250 mg in 5 mL. How much amoxicillin should the nurse administer in the form on hand?

A) 5 mL
B) 10 mL
C) 15 mL
D) 20 mL

Question 19

A client's prescription calls for 10 mg amlodipine besylate daily. The nurse has 2.5 mg tablets on hand. How many tablets should the nurse dispense?

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

Question 20

The nurse is calculating the dosage of an oral tablet for a client and finds that using the dose on hand does not come out exactly even. What should the nurse do in this situation?

A) Give the nearest smaller dosage available
B) Give the nearest larger dosage available
C) Calculate the medication using a generic drug
D) Do not give the client the medication

Question 21

A client is receiving a tube feeding at 50 mL/h. The bag contains 500 mL. How many hours will this bag last?

A) 2.5 hours
B) 5 hours
C) 7.5 hours
D) 10 hours

Question 22

The student nurse is studying common fractions as they apply to the work place. Which is true about common fractions?

A) The numerator refers to the total number of parts.
B) The denominator refers to the part of the whole.
C) The numerator is the top number.
D) In common fractions, 10 is always the denominator.

Question 23

The nurse multiplies and divides simple fractions when calculating drug doses for clients. Which fraction occurs when multiplying 2/5 by 5/8?

A) 16/25
B) 1/4
C) 4
D) 2/5

Question 24

The nurse is measuring a client's medication in a syringe. The prescribed amount is
1)275 mL. The syringe has markings of 1.2 mL, and 1.3 mL, but not 1.275. Which number is the significant figure in this example?

A) 1.2 mL
B) 1.250 mL
C) 1.275 mL
D) 1.3 mL

Question 25

A hypertensive client is prescribed 7.5 mg of enalapril maleate. Each available tablet contains 5 mg of the drug. How many tablets does the client need to take daily?

A) 1 tablet
B) ^11/2 ^tablets
C) 2 tablets
D) ^21/2 ^tablets

Question 26

The nurse is calculating medications using percentages. Which statement is accurate?

A) The term percentage refers to the number per 10.
B) Percent has specific units of measure.
C) To convert percentage to a fraction the percent number becomes the numerator.
D) The denominator in a percentage is always 100.

Question 27

The nurse is teaching a novice nurse how to calculate medications by changing fractions into percentages. How can the percentage designated by any fraction be determined?

A) Divide the denominator by the numerator.
B) Divide the numerator by the denominator.
C) Multiply the denominator by the numerator.
D) Multiply the numerator by the denominator.

Question 28

A nurse is to administer 1^1/2 ^{(1.5) mg of a medication to a client, and the medication is available as ? (0.33) mg scored tablets. How many tablets should the nurse give to administer the prescribed dose?}

A) 4 tablets
B) ^41/2 ^tablets
C) 5 tablets
D) ^51/2 ^tablets