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WorksheetsNCLEX - Drug Calculation
Total questions: 15
Worksheet time: 15mins
Name
Class
Date
1.
60mg of a pain relieving drug is prescribed.
Stock ampoules contain 100mg in 2mls.
What volume is required?
a)
12 ml
b)
1.2 ml
c)
30 ml
2.
A patient is prescribed 1,500mg benzylpenicillin.
The stock on hand is 1.2g in 10ml.
How many mls should you give?
a)
12.5 ml
b)
1.25 ml
c)
2.25 ml
3.
A 60kg patient requires a dose of 500micrograms/kg.
The drug comes as 50mg in 10ml solution.
How many mls are required?
a)
0.6 ml
b)
6 ml
c)
0.6 ml
4.
A patient requires 300mg/m2 of a drug.
His body surface area is 1.9m2.
The stock is 50mg in 5ml.
How many ml should be given?
a)
5.7 ml
b)
22.8 ml
c)
57 ml
5.
1.2g of metronidazole is prescribed to be given over
three divided doses. Each tablet contains 200mg.
How many tablets should be given in each dose?
a)
2 tablets
b)
5 tab
c)
2.5 tab
6.
Now find the concentration in each case below. Give all your
answers in mg/ml.
Lidocaine, 900micrograms in 500ml
a)
0.18 mg/ml
b)
0.018 mg/ml
c)
0.0018 mg/ml
7.
A patient has been given 96ml of frusemide 5mg/10ml.
How many mg of frusemide has been administered?
a)
4.8 mg
b)
19.2 mg
c)
48 mg
8.
How many grams of sodium bicarbonate are in 200ml of
sodium bicarbonate 8% w/v?
a)
16 gm
b)
25 gm
c)
32 gm
9.
How many grams of potassium are in a litre infusion of
potassium 0.3% w/v?
a)
3 gm
b)
0.3 gm
c)
3.3 gm
10.
At how many mls per hour should the IV infusion pump be set to
deliver 500ml of gelofusine over 2 hours?
a)
250 ml/hr
b)
200 ml /hr
c)
150 ml / hr
11.
Find the infusion rate in ml/hr if 80ml of intravenous fluid is to be
infused in 50 minutes
a)
69 ml/hr
b)
96 ml/hr
c)
48 ml/hr
12.
800ml of sodium chloride 0.9% is to run over 8 hours.
Calculate the drip rate in mls per minute using a
standard giving set
a)
1.67 ml/min
b)
10 ml/min
c)
16.7 ml/min
13.
Find the drops per minute rate for 1 litre of IV fluid over 8 hours
using a 20 drops/ml giving set
a)
42 drops/min
b)
50 drops/min
c)
24 drops/min
14.
A patient is to receive 80mg of gentamicin which comes
in a concentration of 2mg/5ml.
The medicine is administered 40 drops per minute
(20 drops = 1ml). How many minutes will this take
to complete?
a)
160 min
b)
120 min
c)
100 min
15.
An infusion of co-trimoxazole is required for a patient weighing 68kg
at a dose of 4mg/kg/hour, given in four divided doses every 6 hours.Co-trimoxazole is on hand in 5ml ampoules at a concentration of96mg/ml. What volume of co-trimoxazole do you need for a 24
hour infusion?
a)
60 ml
b)
68 ml
c)
86 ml
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