Common Conversions
Calculation Methods x 2
Prescription Abbreviations
Dosage Calculation Practice x 4
Equality
100

What is the unit of measurement equal to?

2.2 pounds = __ kg

1 kg

100

What is the equation method?

D/H x Q = x, or Desired dose (amount) = ordered Dose amount/amount on Hand x Quantity

Desired over Have or Formula Method

100

a.c.

before meals

100

Order: Lanoxin 0.125 mg 

Available: Lanoxin 0.25 mg tablets

0.5 tablet (or ½ tablet)

100

This unit of measurement is equal to?

1000 milligrams (mg)

1 gram (g)

200

What is the conversion formula?

 Fahrenheit to Celcius

°C = (°F − 32) x 5/9

200

What is the equation method?

a method used to convert one unit to a different unit.

Dimensional Analysis Method

200

cap., caps.

capsule

200

Order: Apresoline 30 mg 

Available: Apresoline 20 mg tablets

1.5 tablets (or 1 ½ tablets)

200

This unit of measurement is equal to?

1 kilogram (kg)

1000 grams

300

What is the conversion formula?

Height from feet and inches to inches 

feet x 12 + inches = height in inches

example: 

5 ft 4 in =

5 x 12= 60 + 4 = 64 in.

Answer = 64 in

300

What is the equation method?

A ratio is a comparison of two quantities. A proportion is an equality of two ratios. To write a ratio: Determine whether the ratio is part to part or part to whole. Calculate the parts and the whole if needed.

Ratio and Proportion Method

300

b.i.d.

twice daily

300

Order: Calan 10 mg 

Available: Calan 2.5 mg tablets

4 tablet

300

This unit of measurement is equal to?

1 cubic centimeter (cc)

1 milliliter mL

400

What is the conversion formula?

 Celcius to Fahrenheit 

°F = (°C × 9/5) + 32

400

What is the most commonly used and quickest medication calculation method used by allied health professionals.

Desired Over Have or Formula Method

  • D/H x Q = x, or Desired dose (amount) = ordered Dose amount/amount on Hand x Quantity. 

 

400

gtt(s)

drop(s)

400

Order: Cleocin 300 mg 

Available: Cleocin 0.6 g/4 mL

2 mL

400

This unit of measurement is equal to?

1 kilogram

2.2 pound (lb)

500

What is the unit of measurement equal to?

1 liquid oz = __ mL

30 mL

500

Is the medical assistant authorized to do medication calculations? 

NO

500

h.s.

at bedtime

500

Order: Synthroid 0.1 mg 

Available: Synthroid 50 mcg tablets

2 tablets

500

This unit of measurement is equal to?

1 tbsp

15 mL

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