Free Practice Quiz Question List

5 Prescription Quantities and Days’ Supply Online Quiz Questions

Use this free practice quiz with 20 questions to review 5 Prescription Quantities and Days’ Supply, test your knowledge, and prepare for your next test or exam.

20 questions

Written response

1 point

A prescription states how many tablets are dispensed and also estimates how long they will last when used as directed. What is the name of the measure for the amount dispensed?

Fill in the blank

1 point

Complete the days’ supply formula: quantity dispensed divided by .

Fill in the blank

1 point

A patient takes $2$ capsules per dose, $3$ times daily. Complete the statement: the patient uses capsules per day.

Choose one

1 point

A prescription directs a patient to take $1$ tablet $3$ times daily for $10$ days. What quantity is needed for the full course?

A
$30$ tablets
B
$10$ tablets
C
$13$ tablets
D
$3$ tablets

Choose one

1 point

For an illustrative estimate, use $20$ drops per mL. A $5$ -mL bottle is prescribed as $1$ drop in each eye $4$ times daily. About how many days’ supply does the bottle represent? Use the stated estimate; actual drop size may vary.

A
$12.5$ days
B
$10$ days
C
$20$ days
D
$25$ days

Choose one

1 point

A hypothetical inhaler contains $200$ usable actuations. The directions are $2$ actuations twice daily. What is the estimated days’ supply?

A
$50$ days
B
$25$ days
C
$100$ days
D
$200$ days

True or false

1 point

For directions that allow a dose every $4$ to $6$ hours as needed, the usual days’ supply calculation uses the shortest permitted interval to estimate maximum use, unless applicable rules or documented instructions specify otherwise.

A
True
B
False

Choose all

1 point

A prescription gives variable as-needed directions. Select all appropriate approaches for determining days’ supply.

A
Use the shortest allowed interval when it establishes the maximum permitted use.
B
Use the longest allowed interval to estimate the fastest possible use.
C
Seek clarification if the maximum daily use cannot be determined from the prescription.
D
Assume a typical daily use when the maximum is not stated.

True or false

1 point

True or false: If a calculated quantity does not match a product’s package size, it is acceptable to silently change the prescribed quantity to match the package.

A
True
B
False

Choose one

1 point

A product is available only in fixed package sizes, and the calculated quantity does not match an appropriate package. What is the best next step?

A
Round the calculated quantity to the nearest package size without documenting the change.
B
Use the package size as the prescribed quantity, even if it changes the directions.
C
Follow applicable requirements and pharmacy policy, and clarify the prescription when needed.
D
Ignore the mismatch because the days’ supply calculation is unchanged.

Open ended

1 point

A taper directs a patient to take $2$ tablets daily for $3$ days, then $1$ tablet daily for $4$ days. How many tablets are required for the full schedule? Show how you calculate the amount for each step and combine them.

True or false

1 point

True or false: The quantity dispensed and the days’ supply are interchangeable measures.

A
True
B
False

Choose one

1 point

A liquid medication must be reconstituted before dispensing. Which approach should be used when calculating its supply?

A
Calculate from the volume before mixing and disregard storage limits.
B
Calculate from the final volume after mixing and consider applicable storage or beyond-use limits.
C
Assume the labeled package volume is always the final usable volume.

Choose one

1 point

A liquid prescription directs $5$ mL twice daily for $7$ days. What quantity is needed for the full course?

A
35 mL
B
50 mL
C
70 mL
D
140 mL

Choose one

1 point

A patient takes $5$ mL of a liquid medication twice daily. If $70$ mL is dispensed, what is the days’ supply?

A
5 days
B
7 days
C
10 days
D
14 days

Written response

1 point

A PRN prescription does not provide enough information to determine the maximum daily use. What should be done before calculating days’ supply?

Written response

1 point

A patient uses $5$ mL of a liquid medication twice daily. If $70$ mL is dispensed, how many days’ supply is this? Enter the value in days.

Choose one

1 point

A prescription says to take $1$ capsule every $4$ to $6$ hours as needed. For a conservative estimate at maximum use, what is the days’ supply for $24$ capsules?

A
4 days
B
6 days
C
24 days
D
144 days

Choose all

1 point

A prescription is for U-100 insulin at 40 units per day, dispensed in a 10 mL vial. Which statements are correct? Select all that apply.

A
U-100 insulin contains 100 units per mL.
B
A 10 mL vial of U-100 insulin contains 1,000 units.
C
The product and applicable in-use dating should be confirmed.
D
U-100 insulin contains 100 units in the entire 10 mL vial.
E
The prescribed daily dose determines the vial’s in-use dating.

Written response

1 point

A U-100 insulin product contains 100 units per mL. What volume contains 250 units? Enter your answer in mL.