Maths Practice (IV Infusion Rates)

Question 1

One litre of normal saline is to be administered over 8 hours.

Answer 1

125mls/hr

Convert 1 litre to 1000mls then 1000mls divide 8=125mls/hr

Question 2

A patient is to receive 500ml of dextrose 5% over 12 hours.

Answer 2

42ml/hr

500ml divide 12=41.6 (you would round up)

Question 3

500ml of Hartmann’s solutions is to be given to a teenager over 7 hours

Answer 3

71ml/hr

500ml divide 7= 71.4 (you would round down)

Question 4

Over the next 15 hours a female patient is to receive 2 litres of dextrose 4% in 1/5 normal saline

Answer 4

133mls/hr
Convert 2 litres to 2000mls
2000mls divide 15= 133.3 (you would round down)

Question 5

A woman is to be given 500ml of dextrose 5% over 8 hours

Answer 5

63mls/hr

500mls divide 8=62.5 (you would round up)

Question 6

A teenager is to receive one litre of normal saline over 6 hours

Answer 6

167mls/hr
Convert 1 litre to 1000mls
1000mls divide 6= 166.6 (you would round up)

Question 7

Over a period of 16 hours a patient is to receive one litre of dextrose 4% in 1/5 normal saline

Answer 7

63ml/hr
Convert 1 litre to 1000mls
1000mls divide 16= 62.5 (you would round up)

Question 8

A patient is to be given one litre of normal saline over 24 hours

Answer 8

42ml/hr
Convert 1 litre to 1000mls
1000mls divide 24= 41.6 you would round up)

Question 9

Over the next 9 hours a patient is to receive half a litre of dextrose 4% in 1/5 norma saline. At what flow rate should the volumetric infusion pump be set?

Answer 9

56mls/hr
Convert half litre to 500mls
500 divide 9= 55.5 (you would round up)

Question 10

One litre of Hartmann’s solution is to be given over 12 hour. Calculate the required flow rate for the volumetric infusion pump.

Answer 10

83mls/hr
Convert 1 litre to 1000mls
1000mls divide 12= 83.3 (you would round down)

Question 11

Calculate the required pump setting in mL/hr for the given infusion time:
40 mL of fluid containing 600mg of penicillin
Infusion time 20minutes

Answer 11

120mls/hr

40 times 60 divide 20=

Question 12

Calculate the required pump setting in mL/hr for the given infusion time:
120 mL of fluid containing 500mg of vancomycin
Infusion time 50minutes

Answer 12

144mls/hr

120 times 60 divide 50=

Question 13

Calculate the required pump setting in mL/hr for the given infusion time:
100 mL of fluid containing 1g of flucloxacillin
Infusion time 30minutes

Answer 13

200mls/hr

100 times 60 divide 30=

Question 14

Calculate the required pump setting in mL/hr for the given infusion time:
50 mL of fluid containing 0.5g of potassium chloride
Infusion time 30minutes

Answer 14

100mls/hr

50 times 60 divide 30=

Question 15

Calculate the required pump setting in mL/hr for the given infusion time:
60 mL of fluid containing 75mg of ranitidine
Infusion time 35minutes

Answer 15

103mls/hr

60 times 60 divide 35=102.8 (you would round up)

Question 16

Calculate the required pump setting in mL/hr for the given infusion time:
80 mL of fluid containing 80mg of gentamicin
Infusion time 45minutes

Answer 16

107mls/hr

80 times 60 divide 45=106.6 (you would round up)

Question 17

Calculate the required pump setting in mL/hr for the given infusion time:
75 mL of fluid containing 75mg of gentamicin
Infusion time 40minutes

Answer 17

113mls/hr

75 times 60 divide 40= 112.5 (you would round up)

Question 18

Calculate the required pump setting in mL/hr for the given infusion time:
70 mL of fluid containing 1.2g of penicillin
Infusion time 25minutes

Answer 18

168mls/hr

70 times 60 divide 25=

Question 19

Calculate the required pump setting in mL/hr for the given infusion time:
80 mL of fluid containing 750mg of flucloxacillin
Infusion time 30minutes

Answer 19

160mls/hr

80 times 60 divide 30=

Question 20

Calculate the required pump setting in mL/hr for the given infusion time:
100 mL of fluid containing metronidazole 500mg
Infusion time 30minutes

Answer 20

200mls/hr

100 times 60 divide 30=