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Free Practice Quiz Question List

4 Pharmacy Calculations Online Quiz Questions

Use this free practice quiz with 20 questions to review 4 Pharmacy Calculations, test your knowledge, and prepare for your next test or exam.

20 questions
01
True or false
1 point

True or false: Writing units at each step of a pharmacy calculation can help reveal setup errors because units cancel visibly.

  1. A

    True

  2. B

    False

02
Choose one
1 point

A liquid contains 150 mg150\,\mathrm{mg} of medication in 6 mL6\,\mathrm{mL}. What is its concentration?

  1. A

    20 mg/mL20\,\mathrm{mg/mL}

  2. B

    25 mg/mL25\,\mathrm{mg/mL}

  3. C

    30 mg/mL30\,\mathrm{mg/mL}

03
Written response
1 point

Convert 0.75 g0.75\,\mathrm{g} to milligrams. Enter the value in mg.

04
Fill in the blank
1 point

Complete the formula: Days’ supply = ÷ quantity used per day.

05
Choose all
1 point

Select all checks supported for verifying a pharmacy calculation before finalizing it.

  1. A

    Check that units cancel correctly and the result has the expected unit.

  2. B

    Confirm that the product strength matches the dosage form and concentration being used.

  3. C

    Check that a daily dose has not been mistaken for an individual dose.

  4. D

    Round intermediate values to fewer digits before completing the calculation.

  5. E

    Assume a variable as-needed direction has a fixed daily use rate.

06
Choose one
1 point

A patient weighs 20 kg20\,\mathrm{kg}. The order is 12 mg/kg/day12\,\mathrm{mg/kg/day}, divided into three equal doses. What is the amount per dose?

  1. A

    60 mg/dose60\,\mathrm{mg/dose}

  2. B

    80 mg/dose80\,\mathrm{mg/dose}

  3. C

    240 mg/dose240\,\mathrm{mg/dose}

07
True or false
1 point

True or false: For a 20 kg20\,\mathrm{kg} patient prescribed 8 mg/kg/day8\,\mathrm{mg/kg/day} in four equal doses, each dose is 160 mg160\,\mathrm{mg}.

  1. A

    True

  2. B

    False

08
Written response
1 point

A patient receives 7272 capsules and takes one capsule three times daily. How many days’ supply is dispensed? Enter the number of days.

09
Fill in the blank
1 point

A patient takes 7.5 mL7.5\,\mathrm{mL} every 8 hours for 4 days. The quantity needed is mL.

10
Choose all
1 point

Select all conversion setups that correctly cancel the starting unit and convert to the intended unit.

  1. A

    3 g×1000 mg1 g3\,\mathrm{g} \times \frac{1000\,\mathrm{mg}}{1\,\mathrm{g}}

  2. B

    2.5 L×1000 mL1 L2.5\,\mathrm{L} \times \frac{1000\,\mathrm{mL}}{1\,\mathrm{L}}

  3. C

    900 mg×1000 mg1 g900\,\mathrm{mg} \times \frac{1000\,\mathrm{mg}}{1\,\mathrm{g}}

  4. D

    4 kg×1 kg2.2 lb4\,\mathrm{kg} \times \frac{1\,\mathrm{kg}}{2.2\,\mathrm{lb}}

11
Choose one
1 point

How many 150 mg150\,\mathrm{mg} tablets provide a prescribed dose of 600 mg600\,\mathrm{mg}?

  1. A

    22 tablets

  2. B

    33 tablets

  3. C

    44 tablets

  4. D

    55 tablets

12
Choose one
1 point

Using 1 kg≈2.2 lb1\,\mathrm{kg} \approx 2.2\,\mathrm{lb}, approximately how many pounds is 55 kg55\,\mathrm{kg}?

  1. A

    25 lb25\,\mathrm{lb}

  2. B

    110 lb110\,\mathrm{lb}

  3. C

    121 lb121\,\mathrm{lb}

  4. D

    550 lb550\,\mathrm{lb}

13
True or false
1 point

True or false: Writing an oral liquid amount as 0.50 mL0.50\,\mathrm{mL} follows the guidance to avoid trailing zeros.

  1. A

    True

  2. B

    False

14
Open ended
1 point

A patient weighs 24 kg24\,\mathrm{kg}. The prescription is 12 mg/kg/day12\,\mathrm{mg/kg/day}, divided into four equal doses. The liquid contains 80 mg80\,\mathrm{mg} per 4 mL4\,\mathrm{mL}. Calculate the volume for each dose and show how the units support your calculation. Include one safety check before dispensing.

15
Choose one
1 point

Using 1 kg≈2.2 lb1\text{ kg}\approx 2.2\text{ lb}, what is the approximate weight in pounds of a patient who weighs 36 kg36\text{ kg}?

  1. A

    16.4 lb16.4\text{ lb}

  2. B

    79.2 lb79.2\text{ lb}

  3. C

    792 lb792\text{ lb}

  4. D

    1,636.4 lb1{,}636.4\text{ lb}

16
Choose one
1 point

A prescription calls for a 600 mg600\text{ mg} dose. The available tablets contain 150 mg150\text{ mg} each. How many tablets make one dose?

  1. A

    2 tablets2\text{ tablets}

  2. B

    3 tablets3\text{ tablets}

  3. C

    4 tablets4\text{ tablets}

  4. D

    5 tablets5\text{ tablets}

17
Written response
1 point

According to the stated guidance for oral liquid amounts, how should five-tenths of a milliliter be written?

18
Choose one
1 point

A patient weighs 20 kg20\text{ kg}. The order is 8 mg/kg/day8\text{ mg/kg/day}, divided into four equal doses. What is the amount of medication in each dose?

  1. A

    8 mg/dose8\text{ mg/dose}

  2. B

    40 mg/dose40\text{ mg/dose}

  3. C

    160 mg/dose160\text{ mg/dose}

  4. D

    640 mg/dose640\text{ mg/dose}

19
Choose one
1 point

A patient takes 1.51.5 tablets twice daily. If 9090 tablets are dispensed, how many days' supply does the quantity provide?

  1. A

    15 days15\text{ days}

  2. B

    25 days25\text{ days}

  3. C

    30 days30\text{ days}

  4. D

    45 days45\text{ days}

20
Written response
1 point

A liquid contains 180 mg180\text{ mg} in 12 mL12\text{ mL}. What volume delivers a 75 mg75\text{ mg} dose? Enter the numeric value in mL.