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Drug Calculations Quiz
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Question 1
 Convert 19.8 kilograms to stones and
pounds (to the nearest pound)
3 stones 2 pounds
30 stones 2 pounds
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3 stones 1 pound
Weight Conversions
 14 pounds = 1 stone
 1 kilogram = 2.2 pounds
 16 ounces = 1 pound
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Conversion of Units
Kilogram (kg)
X 1000
÷ 1000
Grams (g)
÷ 1000
X 1000
Milligrams (mg)
X 1000
÷ 1000
Micrograms (mcg)
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Question 1 Correct
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Question 2
 420 milligrams is how many kilograms?
0.042
0.00042
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0.0042
Question 2 Correct
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Question 3
 Convert 63 grams to milligrams
63000
6300
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630000
Question 3 Correct
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Question 4
 Convert 7539 micrograms to milligrams
75.39
753.9
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7.539
Question 4 Correct
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Question 5
 8.25 litres equals how many millilitres?
825
8250
82500
Question 5 Correct
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Question 6
 What will you write on a fluid balance chart
if your client drinks 3¼ cups of tea when
one cup = 250 ml
8125ml
81.25ml
812.5ml
Question 6 Correct
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Question 7
 A prescription states 1.4g of lithium
carbonate is to be given. The tablets
available contain 400mg each. How many
should you give?
3½ tablets
3 tablets
4 tablets
Question 7 Correct
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Question 8
 Carbamazepine is prescribed in a dose of
0.7g. Tablets are available in 100mg,
200mg or 400mg. Considering best
practice, how would you administer this
dose using the fewest number of tablets?
1 x 400mg
1 x 200mg
1 x 100mg
1 x 400mg
1½ x 200mg
1¾ x 400mg
Question 8 Correct
Best practice would be to use whole tablets
and not fractions of tablets
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Question 9
 The required dose of diazepam is 5mg.
The oral liquid preparation contains 2mg
per 5 ml. What volume should be given?
13ml
12ml
12.5ml
Question 9 Correct
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Question 10
 An injection of 175mg of flupenthixol
deaconate is prescribed. The drug is
available in ampoules containing 100mg
per millilitre. What volume should be
given?
17.5ml
1.75ml
175ml
Question 10 Correct
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Question 11
 The required dose of Fluoxetine is 24mg.
The liquid preparation contains 40mg in
10mls. How much should be given?
15 ml
30 ml
6 ml
Question 11 Correct
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Question 12
 A client is prescribed 2.7g of Sodium
Valproate daily, divided into 3 equal
doses. The liquid preparation contains
200mg in 5 ml. How much should be
given for each dose?
22.5 ml
25 ml
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2.5 ml
Question 12 Correct
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Question 13
 John is an elderly gentleman weighing 8 stones. How
much stesolid should be given to him in milligrams (to
the nearest mg) as rescue medicine for status
epilepticus
• Adults & children over 3 years and over 10kg:
~ dose = body weight in kg x 500mcg
• Frail elderly:
~ dose = body weight in kg x 250mcg
13mg
13000mg
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25mg
Question 13 Correct
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Question 14
 Jess is a woman weighing 9 stones 7lbs. How much
stesolid should be given to her in milligrams (to the
nearest mg) as rescue medicine for status epilepticus
• Adults & children over 3 years and over 10kg:
~ dose = body weight in kg x 500mcg
• Frail elderly:
~ dose = body weight in kg x 250mcg
15mg
30mg
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30000mg
Question 14 Correct
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Question 15
 A client is prescribed 0.75g of
Chlorpromazine divided into 2 equal
doses. The liquid preparation contains
100mg per 5 ml. How many millilitres
should be given for each dose?
18.75ml
20.25ml
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15ml
Question 15 Correct
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End of Drug Calculation Quiz
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If you struggled with these questions, please seek
help. Remember, you must get at least 70% in
your 2nd and 3rd year maths paper to pass the
course
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