Chapter 9 - Basic Pharmacy Math - Practice Quiz

Which fraction is smallest? a. 1/16 b. 1/8 c. 2/16 d. 3/32

a. 1/16

Which of the following ratio strength solutions is the most concentrated? a. 1:200 b. 1:1,000 c. 1:5,000 d. 1:10,000

a. 1:200

You have a bottle of Ceclor with the concentration of 125 mg/5 mL. How many milliliters are needed to give this patient an exact 200 mg dose? a. 8 mL b. 10 mL c. 12.5 mL d. 15 mL

a. 8 mL

Express 25 thousandths in decimal form. a. 25,000 b. 0.025 c. 0.0025 d. 0.00025

b. 0.025

A pharmacist had 4 oz of dextromethorphan HCl syrup in stock. She used 12/4 oz to fill a prescription order. How much dextromethorphan HCl did she have left? a. 1 3/8 oz b. 1 oz c. 2 5/8 oz d. 2 oz

b. 1 oz

You have an injectable drug with the concentration of 25 mg/2.5 mL 10 mL and are asked to prepare a syringe with a dose of 12 mg in it. What will the volume of your syringe be? a. 0.8 mL b. 1.2 mL c. 1.8 mL d. 2 mL

b. 1.2 mL

An oral antibiotic suspension makes 150 mL after reconstitution. Each dose is 5 mL. Each dose makes up what fractional part of the total? a. 1/20 b. 1/30 c. 1/40 d. 1/50

b. 1/30

What is the Arabic number for the following Roman numeral: CXXXIV a. 1,340 b. 134 c. 1,360 d. 136

b. 134

Drug X has a concentration of 200 mg/5 mL 360 mL. What is the total amount of active drug in this bottle? a. 4,400 mg b. 14,400 mg c. 360 mg d. 24,000 mg

b. 14,400 mg

How many milliliters should you give for the following directions: 5 mL po tid x 10d? a. 90 mL b. 150 mL c. 200 mL d. 360 mL

b. 150 mL

Ferrous sulfate elixir contains 220 mg of ferrous sulfate per 5 mL. How much ferrous sulfate is in 473 mL of elixir? a. 1,100 mg b. 20,812 mg c. 94,600 mg d. 520,300 mg

b. 20,812 mg

How many capsules need to be dispensed for the following prescription order: amoxicillin 250 mg, qty: XXVI a. 24 b. 26 c. 37 d. 46

b. 26

Rx: Drug X is 0.4 g/5 mL 473 mL Directions: 0.25 g po qid x 7d What would the individual dose be? a. approximately 2 mL b. approximately 3 mL c. approximately 4 mL d. approximately 6 mL

b. approximately 3 mL

Rx: Drug X is 0.4 g/5 mL 473 mL Directions: 0.25 g po qid x 7d What is the total volume of medication needed to last the full seven days? a. approximately 56 mL b. approximately 84 mL c. approximately 112 mL d. approximately 168 mL

b. approximately 84 mL

Rx: Azithromycin 500 mg/5 mL 200 mL Directions: 10 mL stat then 5 mL po bid x 20d What does 200 mL mean in this problem? a. number of doses in the prescription b. volume of medication on hand c. volume of active drug d. volume of inactive drug

b. volume of medication on hand

A clinical study of a new drug showed that the drug was effective in 586 of the 803 patients enrolled in the study. What is the decimal expression of the patients who benefited from the drug? a. 586/803 b. 73% c. 0.73 d. 5/8

c. 0.73

Drug X has a concentration of 125 mg/5 mL. How many milliliters are needed to give a 400 mg dose? a. 12 mL b. 14 mL c. 16 mL d. 18 mL

c. 16 mL

Rx: Doxycycline Hyclate 100 mg/5 mL _____ mL Directions: 10 mL stat then 5 mL po bid x 20d How many milliliters are needed to fill this prescription? a. 150 mL b. 200 mL c. 210 mL d. 220 mL

c. 210 mL

Round 4.23891 to the nearest hundredth. a. 4.2389 b. 4.239 c. 4.24 d. 4.23

c. 4.24

You are asked to add meperidine HCl 10 mg to an IV of D5W 100 mL. Meperidine comes in a 4 mL vial with a concentration of 2 mg/1 mL. How much meperidine are you going to place in this IV bag? a. 1 mL b. 3 mL c. 5 mL d. 10 mL

c. 5 mL

If a syringe contains 20 mg of medication in each 10 mL of solution, how many milligrams are administered to the patient when 3 mL is injected? a. 3 mg b. 4 mg c. 6 mg d. 12 mg

c. 6 mg

What is the Arabic number for the following Roman numeral: LXI a. 49 b. 51 c. 61 d. 111

c. 61

Reduce 21/51 to lowest terms. a. 2/5 b. 3/17 c. 7/17 d. 21/51

c. 7/17

Rx: Drug D 325 mg/5 mL _____ mL Directions: 580 mg po bid x 30d What is the total volume needed for this prescription to last the full 30 days? a. approximately 240 mL b. approximately 420 mL c. approximately 540 mL d. approximately 720 mL

c. approximately 540 mL

Rx: Drug D 325 mg/5 mL _____ mL Directions: 580 mg po bid x 30d What would the individual dose be? a. approximately 4 mL b. approximately 7 mL c. approximately 9 mL d. approximately 12 mL

c. approximately 9 mL

Write 3/20 as a decimal. a. 0.320 b. 0.30 c. 0.16 d. 0.15

d. 0.15

Round 0.4912 to the nearest tenth. a. 0.491 b. 0.49 c. 0.4 d. 0.5

d. 0.5

Convert 5/8 to a decimal. a. 0.58 b. 0.158 c. 0.125 d. 0.625

d. 0.625

Reduce 36/27 to lowest terms. a. 3/4 b. 4/3 c. 1 1/4 d. 1 1/3

d. 1 1/3

How much drug is needed to make a 1:100 120 mL solution? a. .5 g b. .6 g c. 1.0 g d. 1.2 g

d. 1.2 g

You have a bottle of prednisone 5 mg/5 mL. How many milliliters are needed to give this patient an exact 12 mg dose? a. 5 mL b. 6 mL c. 10 mL d. 12 mL

d. 12 mL

If a cough syrup contains 4 mg of chlorpheniramine in each 5 mL, how much chlorpheniramine (in milligrams) is contained in 240 mL of syrup? a. 24 b. 48 c. 96 d. 192

d. 192

Rx: Azithromycin 500 mg/5 mL 200 mL Directions: 10 mL stat then 5 mL po bid x 20d How much active drug is in this container? a. 5,000 mg b. 10,000 mg c. 15,000 mg d. 20,000 mg

d. 20,000 mg

If a potassium chloride solution contains 20 mEq in each 15 mL, which volume of solution provides 35 mEq for the patient? a. 1.75 mL b. 8.57 mL c. 17.5 mL d. 26.25 mL

d. 26.25 mL

How many tabs will be used for one dose of a medication with the following directions? Directions: iv tabs po bid x 10d a. 1 b. 2 c. 3 d. 4

d. 4

Convert 0.16 to a fraction. a. 1/16 b. 1/8 c. 16/50 d. 4/25

d. 4/25

Which fraction is largest? a. 1/12 b. 3/32 c. 12/72 d. 5/20

d. 5/20

Which of the following is an incorrect way to state a proportion? a. a is to b as c is to d b. a:b = c:d c. a/b = c/d d. ab = cd

d. ab = cd