A patient is to receive 12.5mg of midazolam 5mg/1mL for injection. How many mL of solution should be used to prepare this injection?

A patient is to receive 12.5mg of midazolam 5mg/1mL for injection. How many mL of solution should

be used to prepare this injection?

2. A patient is to receive 40mg of furosemide 10mg/mL solution for injection. How many mL of solution

should be used to prepare this injection?

3. What does it mean when a drug label lists the strength as 4:150?

4. Express the following as ratio strengths:

a. 3 g of active ingredient in 50 mL of solution

b. 1 g of active ingredient in 150 mL of solution

c. 5 g of active ingredient in 250 mL of solution

5. How many grams of active ingredient are present in 250 mL of a 1:300 solution?

6. How many grams of active ingredient are present in 260 mL of a 2:175 solution?

7. How many mL are needed to provide 15 mg of an active ingredient if the solution concentration is 1:

400?

RECONSTITUTION

8. Write the equation used to calculate powder volume.

9. Rearrange the equation to give the solution for calculating Final Volume and Diluent Volume

10. A vial of powdered anesthetic commonly used in the ED must be reconstituted before administration.

The label states the powder volume is 0.2 mL. What is the final volume if you add a 5 mL of diluent?

11. A vial of powdered antibiotic must be reconstituted before administration. The label states the powder

volume is 0.3 mL. What is the diluent volume if the final volume is 7 mL?

12. A 3 g vial needs to be reconstituted with 12 mL of diluent before it can be used for injection. If the

powder volume is 2 mL, what will be the final concentration of the reconstituted solution?

13. You are asked to add 24 mEq of sodium chloride to an IV bag. Sodium chloride is available as a 4

mEq/mL solution. How many mL will you add to the bag?

14. You must add 6 mmol of an inorganic phosphate to an IV solution. You have 12 mmol/2 mL solution

available. How many mL will you add?

15. A patient is to receive a 5,000 unit heparin bolus injection. How many mL of a 10,000 unit/5 mL

solution will you need to administer this bolus injection?

16. A patient is to receive 75 units/kg of heparin. If the patient weights 20kg, how many units of heparin

will they receive? If the solution available is 500 units/mL, how many mL will you give?

17. What concentration of insulin should insulin syringes be used to administer?

18. A patient is to receive 25 units of insulin before meals. How many mL of insulin will the patient receive

for each dose if the concentration of the solution is 100 units/mL?

19. A patient is to receive 20 units of insulin before meals three times per day. How many mL of insulin will

the patient receives each day if the concentration of the solution is 100 units/mL?

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