Deck 19: Reconstitution of Solutions

Question 1

Directions: Prepare the following strength solutions.Describe your calculations.
1/4 strength Ensure 8 oz p.o.q4h for 24 hours

Answer 1

[Note: 8 oz q4h = 6 feedings;8 oz *0 6 = 48 oz]
1 oz = 30 mL,therefore 48 oz = 1,440 mL
1/4* 1,440 = 360 mL of the formula (solute)
Amount of solution (1,440 mL)- Amount of solute (360 mL)= Amount needed to dissolve (1,080 mL)
Therefore,you will add 1,080 mL of water to 360 mL of Ensure to make 1,440 mL of 1/4 strength Ensure.

Question 2

Directions: Prepare the following strength solutions.Describe your calculations.
Prepare irrigant 250 mL 1/2 strength solution: ______________________________

Answer 2

1/2 * 250 mL = 125 mL (solute)
Amount of solution (250 mL)- Amount of solute (125 mL)= Amount needed to dissolve (125 mL)
Therefore,you will add 125 mL of water to 125 mL of irrigant to make 250 mL 1/2 strength irrigant solution.

Question 3

Directions: Use the label (where provided)to obtain the necessary information.Round answers to the nearest tenth where indicated.
Order: Vancomycin 0.85 g IV q12h
Available:
a.How many milliliters of diluent are used to reconstitute the solution? _____ mL
b.What is the dosage strength of the prepared solution? _______________
c.How many milliliters will you add to the IV? _____ mL

Answer 3

a.20
b.50 mg per mL or 1 g per 20 mL
c.17

Question 4

Directions: Indicate how you would prepare each of the following using full-strength hydrogen peroxide (solute)and normal saline (solvent).
300 mL of 3/4 strength for skeletal pin care

Question 5

Directions: Indicate how you would prepare each of the following using full-strength hydrogen peroxide (solute)and normal saline (solvent).
0.24 L of 1/3 strength for wound care

Question 6

Directions: Prepare the following strength solutions.Describe your calculations.
a.What is the total dosage strength of the vial? _____
b.If 450,000 units IV of penicillin were ordered,which concentration would be appropriate to mix? _____
c.How much diluent must be added to make the appropriate concentration? _____
d.If the medication is reconstituted at 1:00 AM on December 18,what must you print on the label? _______________
e.How many milliliters will you give to administer 450,000 units IV? _______

Question 7

Directions: Prepare the following strength solutions.Describe your calculations.
360 mL of 1/4 strength Ensure percutaneous endoscopic (PEG)tube over 4 hours

Question 8

Directions: Use the label (where provided)to obtain the necessary information.Round answers to the nearest tenth where indicated.
Order: Ceftriaxone 0.5 g IV q12h
Available:
a.How many milliliters of diluent will you add to reconstitute the solution for IV use? _____ mL
b.What is the dosage strength of the reconstituted solution for IV use? _____
c.How many milliliters will you administer? __________ mL
d.Shade in the dosage on the syringe.

Question 9

Directions: Use the label (where provided)to obtain the necessary information.Round answers to the nearest tenth where indicated.
Order: Zosyn 3 g IV q6h
Available:
a.How many milliliters of diluent should be used to reconstitute the solution? _____ mL
b.What is the dosage strength of the prepared solution? _______________
c.How many milliliters will you add to the IV? _____ mL

Question 10

Directions: Prepare the following strength solutions.Describe your calculations.
800 mL of 3/4 strength Sustacal via gastrostomy over 6 hours

Question 11

Directions: Use the label (where provided)to obtain the necessary information.Round answers to the nearest tenth where indicated.
Order: Amoxicillin clavulanate potassium 275 mg p.o.q12h
Available:
a.How much diluent is recommended for reconstitution? _________
b.What is the dosage strength of amoxicillin when reconstituted? _______
c.What is the total volume of the reconstituted solution? __________
d.How many milliliters will you administer? (based on the amoxicillin)________

Question 12

Directions: Use the label (where provided)to obtain the necessary information.Round answers to the nearest tenth where indicated.
Order: cefazolin (Ancef)0.375 g IM q6h
Available:
a.How many milliliters of diluent will you add for IM use? _____ mL
b.Why will the reconstituted volume be larger than the amount of diluent? __
c.What is the dosage strength of the reconstituted solution? ___________
d.What are the directions for use?
e.How many milliliters will you administer? _____ mL

Question 13

Directions: Indicate how you would prepare each of the following using full-strength hydrogen peroxide (solute)and normal saline (solvent).
8 oz of 1/2 strength for wound care.

Question 14

Directions: Use the label (where provided)to obtain the necessary information.Round answers to the nearest tenth where indicated.
Order: Synagis 65 mg IM q8h
Available: Refer to label and package insert
a.What diluent is recommended for reconstitution? ___________
b.How much diluent must be added? ____________
c.What is the dosage strength of the reconstituted solution? ______
d.How many milliliters will you administer? ________
e.How long is the reconstituted solution good for? ___________

Question 15

Directions: Prepare the following strength solutions.Describe your calculations.
Order: Amoxicillin 175 mg p.o.q8h
Available:
a.Form: _______________
b.Route of administration: _______________
c.Type of diluent and amount to use: _______________
d.Directions for mixing: _______________
e.Dosage strength of reconstituted solution: _____
f.Time good for after reconstitution: _____
g.How many milliliters will you administer? __________