Deck 6: Complex Calculations

Question 1

Melissa is to have 1.5 grams of drug A/day, to be given 4/24. Stock available is 125 mg scored tablets. The number of tablets/dose that should be given is

A) 1/2 tablet
B) 1 tablet
C) 1 1/2 tablets
D) 2 tablets

Answer 1

D

Question 2

Suzie is to have 0.25 mg of drug B per day, to be given 6/24. Stock available is 62.5 mcg tablets. For a single dose she should receive

A) 4 tablets
B) 3 tablets
C) 2 tablets
D) 1 tablet

Answer 2

D

Question 3

Mr Wilkinson is to have 75 mg of drug C. Stock in the ward is 100 mg/2 ml. The volume of drug C required for this order is

A) 2 ml
B) 1.75 ml
C) 1.5 ml
D) 1.25 ml

Answer 3

C

Question 4

Mrs Cook is to have 7500 units of drug D. Stock in the ward is 5000 units/0.2 ml. The volume required for this order is

A) 0.1 ml
B) 0.3 ml
C) 0.5 ml
D) 0.7 ml

Question 5

Tommy, who weighs 15 kg, is to have 20 mg/kg/day of drug E. This medication is to be given 8/24. Stock is 125 mg/5 ml. For a single dose you should pour

A) 1 ml
B) 2 ml
C) 3 ml
D) 4 ml

Question 6

Claire is to have 1 gram of drug F per m² of BSA per day, to be given in two equally divided doses. Claire's BSA is 0.6 m² and drug F is available as a mixture of 125 mg/5 ml. The volume of drug F required for a single dose is

A) 6 ml
B) 8 ml
C) 10 ml
D) 12 ml

Question 7

Chris is to have 800 mg of drug G which is available as 1 gram of powder in a 10 ml vial. When reconstituted, drug G will displace 0.7 ml of fluid. The amount of sterile fluid
Required to reconstitute drug G to a concentration of 200 mg/1 ml is

A) 10 ml
B) 9.3 ml
C) 5 ml
D) 4.3 ml

Question 8

Drug H is to be reconstituted to a concentration of 250 mg/ml. Drug H is also available as 1 gram of powder and will displace 1 ml of fluid on reconstitution. The volume of sterile fluid required for this order is

A) 3 ml
B) 4 ml
C) 9 ml
D) 10 ml

Question 9

Nellie has an intravenous infusion in which 90 ml remain in the bag. This infusion is dripping at the rate of 45 drops minute via a drop factor of 20 drops/ml. The number of minutes that this infusion will take to complete is

A) 40 minutes
B) 45 minutes
C) 50 minutes
D) 55 minutes

Question 10

James has 50 ml of intravenous fluid left in the 0.5 L bag. This fluid is dripping at 40 drops/minute via a micro-dropper. Time taken to complete this infusion will be

A) 100 minutes
B) 75 minutes
C) 50 minutes
D) 25 minutes

Question 11

Susan is receiving an infusion at the rate of 2 ml/minute via a line with a drop factor of 20 drops/ml. The number of drops/minute that would deliver 2 ml are

A) 30
B) 40
C) 50
D) 60

Question 12

Mary's infusion is dripping at the rate of 45 drops/minute, via a micro-dropper. The volume per hour that Mary is receiving from this infusion is

A) 45 ml
B) 50 ml
C) 55 ml
D) 60 ml

Question 13

8 ml of medication has been added to 42 ml of fluid in the burette on Ron's infusion line. The drop factor for this line is 20 drops/ml. This medicated solution is to infuse over 15 minutes so the rate of flow in drops/minute should be

A) 52
B) 62
C) 67
D) 70

Question 14

Olive has a medicated infusion of 60 ml which is to complete in 40 minutes. The drop factor for this line is 20 drops/ml. The number of drops/minute should be

A) 20
B) 30
C) 40
D) 50

Question 15

Mrs Rome has a medicated infusion with 60 mg of drug J in 60 ml of fluid. This solution is to infuse at the rate of 2.5 ml/hour, after commencing with a bolus dose of 5 mg over 4 minutes. The ml/hour required for this bolus dose is

A) 75
B) 60
C) 45
D) 30

Question 16

Mr Lennard has a medicated infusion with 450 mg of drug K in 100 ml of fluid. This solution is delivering 4 ml/hour. A bolus dose of 18 mg is to be given over a 3-minute period. The ml/hour required for this bolus dose is

A) 100
B) 80
C) 60
D) 50

Question 17

Jason, who weighs 60 kg, has been ordered 150 mg/kg of drug L, to be given intravenously over a 30-minute period. Stock in the department is a 20% solution of drug
L in a 250 ml bag of fluid. The volume/hour required for this 30-minute order is

A) 90 ml
B) 60 ml
C) 45 ml
D) 30 ml

Question 18

Mr Tate, who weighs 80 kg, is to have 200 mg/kg of drug M, to be given intravenously over 45 minutes. Stock on hand is a 10% solution in 250 ml. The volume/hour required for this 45-minute order is

A) 160 ml
B) 213.3 ml
C) 240 ml
D) 240.5 ml

Question 19

Clive, who weighs 75 kg, has been ordered drug N at the rate of 3 mcg/kg/minute. The prepared solution contains 50 mg of drug N in 250 ml of fluid. The volume/hour required for this order is

A) 52.5 ml
B) 67.5 ml
C) 75.5 ml
D) 82.5 ml

Question 20

Elizabeth is to receive an infusion of 1250 units of drug P/hour. Prepared stock is 25 000 units in a 500 ml solution. The ml/hour required for this order would be

A) 15
B) 20
C) 25
D) 30

Question 21

Mr Robson is ordered 2 grams Amoxycillin/day, to be given 6/24. How many capsules/dose should he receive if stock is 250 mg/capsule?

Question 22

Natalie is to have 1.5 grams of drug B per m² of body surface area/day. If her body surface area is 0.66 m², and this medication is to be given QID. How many mg/dose should she receive?

Question 23

Daisy, who weighs 22 kg, is to have 20 mg/kg/day of drug C. This medication is to be given 6/24 and is available as a mixture with a concentration of 10 mg/ml. What volume/dose should she be given?

Question 24

Mandy is to have 0.4 L of blood over a 5-hour period. The drop factor for this line is 15 drops/ml. Calculate the rate of flow in drops/minute.

Question 25

Cindy is to have 1.2 L of intravenous fluid over a 24-hour period. Calculate the rate of flow, in drops/minute, if a micro-dropper is used.

Question 26

Mrs Withers, who weighs 60 kg, is to receive 0.2 units/kg/hour of intravenous insulin, via a volumetric pump. The infusion contains 60 units of insulin in 100 ml of 0.9% sodium chloride. Calculate the rate of flow in ml/hour.

Question 27

Colleen has intravenous pain relief medication, 400 mg of pethidine in 100 ml of 0.9% sodium chloride, being delivered over a 24-hour period via a volumetric pump. She is to have a bolus dose of 12 mg over a 4-minute period. For this order, calculate the rate of flow in ml/hour for the 4-minute administration.

Question 28

Drug D is to be infused at the rate of 15 mcg/kg/minute for Mr Regent, who weighs 70 kg. Prepared stock solution contains 400 mg of drug D in 100 ml of 0.9% sodium chloride. Calculate the rate of flow, in ml/hour, via a volumetric pump, for this order.

Question 29

You are assisting with the care of Mr Grant who weighs 75 kg and is ordered 200 mg/kg of Mannitol solution over a 30-minute period. Stock in the department is a 250 ml bag of 20% Mannitol. Calculate the rate of flow, in ml/hour, that the volumetric pump should deliver, to complete this task in 30 minutes.

Question 30

Ms Jackie Reed, who weighs 65 kg, is to have 3 mcg/kg/minute of Nitroprusside. The prepared stock contains 50 mg of Nitroprusside in a 500 ml solution. Calculate the rate of flow for the volumetric pump, in ml/hour.

Question 31

You are assisting with the care of Mr Grant, who weighs 75 kg and is ordered 200 mg/kg of Mannitol solution over a 30-minute period. Stock in the department is a 250 ml bag of 20% solution of Mannitol. Calculate the rate of flow, in ml/hour, that the volumetric pump should deliver to complete this task in 30 minutes.

Question 32

Ms Jackie Reed, who weighs 65 kg, is to have 3 mcg/kg/minute of Nitroprusside. The prepared stock contains 50 mg of Nitroprusside in a 500 ml solution. Calculate the rate of flow for the volumetric pump, in ml/hour.