Calculation of Doses: General Considerations (Part 1) Prescription, Dose, Routes of Drugs, Dose Administration, Dosage Forms and Dose Measurements

Question 1

It is an instruction written by a medical practitioner that authorizes a patient to be provided a medicine or treatment.

Answer 1

The correct answer is: Prescription

Question 2

It is the quantity or amount of drug or drug formulation taken by, or administered to, a patient to achieve a therapeutic outcome.

Answer 2

The correct answer is: Dose

Question 3

Rx recipe means

Answer 3

The correct answer is: Take thou

Question 4

It guarantees the authenticity of the prescription.

Answer 4

The correct answer is: Signature of the physician

Question 5

It is the computer-to-computer transfer of prescription information between authorized prescribers, pharmacies, intermediaries and payers under a nationally accepted standards.

Answer 5

The correct answer is: e-prescribing

Question 6

Gutta means (in English)

Answer 6

The correct answer is: drop

Question 7

The Generics Act or RA 6675 was approved in the year

Answer 7

The correct answer is: 1988

Question 8

It indicates a patient’s following of the instructions for taking the medication prescribed, including the correct dose, dosing frequency and duration of treatment .

Answer 8

The correct answer is: Medication adherence

Question 9

When the brand name does not correspond with the generic name, the prescription is said to be

Answer 9

The correct answer is: Impossible prescription

Question 10

The amount of drug taken at one time.

Answer 10

The correct answer is: Single dose

Question 11

A prescription requires two suppositories of drug Y for 3/7. How many suppositories should be supplied? 3/7 is the abbreviation for 3 days

Answer 11

The correct answer is: 6 suppositories

Question 12

A prescription requires a patient to receive a quantity of indigestion mixture with a dosage regimen of 15 mL four times a day for 5 days. How many 5 - mL spoonfuls of the mixture will the patient require to take for each dose?

Answer 12

The correct answer is: 3 5-ml spoonsful

Question 13

A prescription requires a patient to receive a quantity of indigestion mixture with a dosage regimen of 15 mL four times a day for 5 days. Calculate the total volume, in mL, that should be supplied to the patient.

Answer 13

The correct answer is: 300 mL

Question 14

A prescription requires a patient to receive a quantity of indigestion mixture with a dosage regimen of 15 mL four times a day for 5 days. Calculate the number of doses.

Answer 14

The correct answer is: 20 doses

Question 15

A prescription requires a dose of 200 mg of paracetamol. What volume, in mL, of paracetamol suspension (250 mg/5 mL) would provide a dose of 200 mg?

Answer 15

The correct answer is: 4 mL

Question 16

A customer buys an over-the-counter pack of 100 vitamin capsules. The dosage regimen is one capsule three times a day. How many days will the pack last if the customer takes the capsules according to the dosage regimen?

Answer 16

The correct answer is: 33 days

Question 17

A patient requires an intramuscular injection of 0.5 mg of salbutamol. Salbutamol is available as an injection containing 100 microgram/mL. How many milliliters of injection will supply the required dose?

Answer 17

The correct answer is: 5 mL

Question 18

A patient requires 15 mg of morphine sulfate by SC injection every four hours for sixteen hours. Morphine sulfate is available as 20 mg/mL. What is the total quantity of morphine sulfate given over the 16 hours?

Answer 18

The correct answer is: 3 mL

Question 19

A prescription requires 360 mg of paracetamol to be taken 4 times a day for 3 days, supplied as pediatric paracetamol, 120 mg/5 mL suspension. Calculate the volume, in mL, of paracetamol suspension to be supplied.

Answer 19

The correct answer is: 180 mL

Question 20

An inhaler contains 200 metered doses. If the patients inhales two doses three times a day, how long will the inhaler last? (Number of days)

Answer 20

The correct answer is: 33 days

Question 21

A patient requires 8 mg of Drug X per day for 1 week followed by 7 mg of the drug per day for the next week. Drug X is available as 1 mg and 4 mg. How many tablets of each strength should the pharmacist supply. For item number 9, use the available 4 mg

Answer 21

The correct answer is: 26 tablets

Question 22

A patient requires 8 mg of Drug X per day for 1 week followed by 7 mg of the drug per day for the next week. Drug X is available as 1 mg and 4 mg. How many tablets of each strength should the pharmacist supply. For item number 8, use the available 1 mg

Answer 22

The correct answer is: 105 tablets

Question 23

A patient is prescribed two tablets of a drug four times a day for 3 months. How many tablets of drug should the pharmacist dispense? ( assume: there are 4 weeks in those months)

Answer 23

The correct answer is: 672 tablets

Question 24

A residential home buys a 1000 pack of Senna tablets. Each resident is given two tablets each night. There are 35 residents. How long will it take to use all the senna tablets? (number of days)

Answer 24

The correct answer is: 14 days

Question 25

A patient requires 15 mg of morphine sulfate by SC injection every four hours for sixteen hours. Morphine sulfate is available as 20 mg/mL. What volume, in mL, of the injection should be given on each dosing occasion?

Answer 25

The correct answer is: 0.75 mL