FINAL 01 - Computations

Question 1

What volume is required for an injection if 500 mg is ordered and stock ampules contain 250 mg/mL?

Answer 1

2 mL

Question 2

A dose of 3500 mg of medication has been ordered for a patient. The medication comes in 5g/2mL. What volume will you give the patient?

Answer 2

1.4 mL

Question 3

Formulation A contains 9.25 mg of Vitamin A and 400 IU of ergocalciferol. Formulation Y contains 2240 IU of Vitamin A and 10 mcg of Vitamin D. Which formulation contains the greatest Vitamin A concentration? (1 IU=0.344 mcg)

Answer 3

Formulation A (26,889.53 IU)

Question 4

Captopril
0.5 mg/pptab
1x a day

100 pptabs

How many Captopril 50 mg tabs is needed to prepare 100 pptabs?

Answer 4

1 tab

Question 5

Furosemide
1 mg/pptab
2x a day

200 pptabs

How many Furosemide 80 mg tablets are needed to prepare 200 pptabs?

Answer 5

2.5 tabs

Question 6

A 13 kg child is ordered a medication for 2.5 mg/kg/day with 3 doses per day. How many mg would you administer per dose?

Answer 6

10.83 mg

Question 7

A 3000 g infant is ordered a medication for 0.6 mg/kg/day. How much will you give to the patient per day?

Answer 7

1.8 mg/day

Question 8

A patient weights 16.5 kg and is prescribed for 0.4 mg/kg/dose. The stock strength is 20 mg/5 mL. What volume will you give the patient?

Answer 8

1.65 mL

Question 9

A patient needs 1 mg of a medication. The Australian Injectable Drugs Handbook states that each gram of this medication is to be mixed with 10 mL of water over 3-5 minutes via IV bolus. After preparing the medication, how many mL/minute would you administer if you do over 3 minutes?

Answer 9

0.0033 mL/minute