MODULE 2

Question 1

Why is it important to learn calculations for dispensing?

Question 2

What units are commonly used in pharmacy practice?

Question 3

How to convert units?

Question 4

What is the concentration of the following example in mg/mL, g/mL and mcg/mL basis.

Adalimumab (Humira®), a recombinant human monoclonal
antibody, is available in a prefilled syringe containing
40mg/0.8mL of injection

Question 5

How to solve for unknowns?

Question 6

For 5mg in 10 mL, how many mg in 200 mL?

Question 7

60mg of dithranol in 5g of cream, how much dithranol is in 60g of cream?

Question 8

What is concentration and what are the 4 forms in pharmacy?

Question 9

How can concentration be expressed?

Question 10

What is percentage strenght?

Question 11

What is amount strength?

Question 12

What is ratio strength?

Question 13

What is parts per million (ppm)?

Question 14

How do you change between strengths?

Question 15

A patient was hospitalised due to a gastrointestinal tract
infection that resulted in severe diarrhoea and dehydration.
The treating physician decided to treat the dehydration by
administering 4.5g NaCl in 500mL solution as a continuous
IV infusion.

Express the sodium chloride solution as a % w/v, mg/mL and ratio.

Question 16

How to change concentrations in dilutions?

Question 17

How much of a 5% hydrogen peroxide solution is required to
make 1L of a 1% solution?
1

Question 18

How much of a 5% hydrogen peroxide solution is required to
make 1L of a 1% solution?
2

Question 19

A pharmacist receives a dental prescription for 60mL of 4%
hydrogen peroxide solution to be used by the patient to whiten
their teeth.
* However, only 10% hydrogen peroxide stock solution is
available.
* Calculate the volume of stock solution needed to prepare 60mL
of 4% hydrogen peroxide solution

Question 19

A patient requires a stock solution of peppermint oil so they
can dilute with water at home and use as steam inhalation.
* Prepare 50mL of peppermint oil stock solution so that
5mL, when diluted to 1L, has a final concentration of
0.15% (w/v).

Question 20

How to reduce/enlarge formulas?

Question 21

Example 1

Question 22

What is the minimum weighable quantity?

Question 23

What is trituration?

Question 24

Example 1

Question 25

Example 2

Question 26

What is density and specific gravity?

Question 27

Coal Tar

Question 28

Coal tar calcs

Question 29

Coal tar calcs

Question 30

Prop e1

Question 31

prop e2

Question 32

What is alligation?

Question 33

What is Alligation medial?

Question 34

E am

Question 35

What is alligation alternate?

Question 36

E aa 1

Question 37

E aa 2

Question 38

dose

Question 39

E 1

Question 40

Dose on weight

Question 41

E 2

Question 42

E 2

Question 43

E 3

Question 44

What is molecular weight?

Question 45

How do we use Molecular weight in calculations?

Question 46

E1 salts and hydrates

Question 47

Moles and mill

Question 48

Example

Question 49

Example

Question 50

Example

Question 51

Example

Question 52

Milliequiv

Question 53

E 1

Question 54

E 2

Question 55

Intravenous ad

Question 55

E

Question 56

Displacment cal

Question 57

E

Question 58

E