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Question:

What does “dtd” mean on a prescription?

A Give of such doses

explanation

”dtd” is a Latin expression meaning “give of such doses.”

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Which of the following drug classifications does not need to be dispensed in a child-resistant container?

Oral contraceptives

Under the Poison Prevention Act of 1970, oral contraceptives do not need to be packaged in child-resistant containers.

The action of reducing a material to small particles is:

Comminution

There are 3 methods for comminution: trituration, pulverization by intervention, and levigation.

Most missing information on a prescription must be clarified by a phone call to the doctor. Which of these types of missing information can the patient provide without a phone call to the prescriber?

patient address

The patient is allowed to supply his or her address. All other missing information would require a phone call to the doctor.

A 60 day supply for a prescription for Colace 100 mg capsule taken bid should be filled with ___.

120 capsules

The correct answer is 120 capsules because the prescription is for a 60 day supply and directions are one capsule twice daily (bid). In other words, 1 x 2 x 60 = 120.

The pharmacy receives a prescription for Synthroid 0.1 mg. What term refers to the name and strength of the medication?

Inscription

The inscription on a prescription identifies the name of the medication and its strength. A prescription is an order from a licensed prescriber for a medication drug for a patient. The signa contains directions to the patient on taking the medication, and the subscription identifies for the pharmacist any special compounding directions.

Non-controlled prescriptions are valid for how long?

1 year from the date the prescription was written

Federal law states that prescriptions for non-controlled drugs are good for 1 year from the date the prescription was written.

A PRN order is an order for a medication that is used on a(n) ________ basis in a hospital.

as-needed

PRN is a medical term that means “as needed.” PRN orders are requests for mediation that is not used on a routine basis. Instead PRN medications are used only when the patient needs it, such when Phenergan is used for nausea and vomiting.

An order is written for 500 mL of NS to infuse at 40 gtt/min. How long would it take to infuse the NS if the set delivers 10 gtt/mL?

125 minutes

10 gtt/mL means 10 drops per mL. So for 500 mL you will get:
10 x 500 = 5,000 drops
The flow rate is 40 gtt/min, which means 40 drops per minute, so divide total drops by 40 to get the number of minutes:
5,000/40 = 125

Medications that do not require refrigeration are required to be kept within room temperature range. Which temperature range is this?

68 to 77 degrees Fahrenheit

Room temperature is considered to be 68 to 77 degrees Fahrenheit

What is the maximum number of refills permit- ted on a schedule IV prescription?

The Controlled Substance Act only permits a maximum of five refills within 6 months of the date the prescription is written if authorized by the prescriber on the prescription.

Assuming that the medication comes in 10ml vials, calculate the days' supply for a prescription written as Humalog U-100 Inject 10 U SQ QID.

25 days

Humalog U-100 is a 10 ml bottle that has 100U/ml. The days' supply is calculated this way:
Units in 1 bottle = 100 U/1ml = x U/ 10ml
Cross multiply and:
x = 1000 U
To solve for days supply of prescription:
40 U/ 1 day = 1000 U/ x day
Cross multiply and:
x = 25

An order is written to administer 2 liters of an IV fluid over 18 hours. What will the flow rate be?

111 mL/hr

Divide the volume by the time to get the flow rate:
2 liters equals 2,000 mL
2000/18 = 111.1 mL/hr

What does “prn” refills mean?

The patient may refill the prescription for 1 year from the date the prescription was written.

A “prn” refill allows for a prescription to be refilled for 1 year from the date the prescription was written.

A prescription is written for one pint of a prescription drug. What volume must be entered in the computer system?

473 mL

One pint is equal to 473 mL, and all quantities must be entered using metric units.