Question

9 Order: Pitocin 3 milliunits/min tritrate up to 20 milliunits/min. Available: Normal Saline 1000 ml with 20 units of Pitocin per liter. At what rate would you start the infusion pump (ml/hr)? 10. A Pitocin drip is being started on a patient to induce labor. The order is to administer 2 milliunits/min. The drug is supplied as 10 units mixed in 500 ml of D5W. How many ml/hr should the IV infusion pump be set to deliver the correct amount of the drug? 11. Begin a Pitocin infusion at 5 mu /min via IV pump for labor induction. On hand is Pitocin 40 units in 1000 ml Lactated Ringers. How many ml/hr will the IV run? 12. The order reads: begin the infusion of Pitocin at 6 mu/min. On hand is 30 units of Pitocin mixed in 500 mlL of Lactated Ringers. How will you set the pump? 13. The order reads: begin a Pitocin infusion at 3 mu/min. You have on hand Pitocin 30 units in 500 ml of Lactated Ringers. How should you set the pump? 14. Begin a Pitocin infusion at 7 mu/min via pump for labor induction. On hand is Pitocin 30 units in 1000 ml Lactated Ringers. How many ml/hr will you run the IV? 15. The physician orders Pitocin 4 mu/min. Available: Pitocin 10 units in 250 mls of Normal Saline. What is the IV flow rate? Your patient is to receive an infusion of Pitocin. The drug comes 20 units/1000 ml in D5W. The doctor orders 0.01 16. units/min. How many mL/hour should the patient receive? The physician orders the patient to receive heparin 1500 units/hour of a solution containing 30,000 units/1 Liter. At what rate would you set the IV using a 60 gtt/mL administration set? Answer in ml/hour. 17. The order is to add 30,000 units heparin to 1000 mL D5W and infuse at 30 ml/hour. How many units of heparin will the patient receive per minute? 18.

Answer 1

Q9

NOTE 1 Unit =1,000 milliunits

TO MAKE SINGLE-STRENGTH IV SOLUTION: Add 10 Units
of Pitocin to 1 litre of compatible IV fluid

TO INFUSE: Convert prescribed milliunits/min to mL/hr and set
infusion pump. IV infusion pump MUST be used for client safety.

AMOUNT ORDERED: 20 milliunits/min

CALCULATIONS: 10 Units/1 L = 10,000 milliunits/1,000 mL
OR 10 milliunits/1 mL.
10 milliunits/1 mL = 20 milliunits/X mL
Cross-multiply to get 20 = 10X
X = 2, so 2 mL/min
Multiply by 60 minutes to get amount infused per hour.
THINK: 20 milliunits = 2 mL/min
2 mL/min x60 min/hr =120 mL/hr (2x60 =120)
Set the infusion pump for 120 mL/hr.

Q10

NOTE 1 Unit= 500 milliunits

TO MAKE SINGLE-STRENGTH IV SOLUTION: Add 20 Units
of Pitocin to 1000 ML of compatible IV fluid(BY CONVERTING TO 20 UNITS/LTR)

TO INFUSE: Convert prescribed milliunits/min to mL/hr and set
infusion pump.

AMOUNT ORDERED: 2 milliunits/min

CALCULATIONS: 20 Units/1000 ML = 20000 milliunits/500 mL
OR 20 milliunits/1 mL.
20 milliunits/1 mL = 2 milliunits/X mL
Cross-multiply to get 2 = 20X
X = 0.1, so 0.1 mL/min
Multiply by 60 minutes to get amount infused per hour.
THINK: 2 milliunits = .1 mL/min
0.1 mL/min x60 min/hr = 6mL/hr (.1x60 =6)

BY CONVERTING BACK TO 10 UNITS PER LITRE
6/2=3

Set the infusion pump for 3 mL/hr.

Q11

NOTE 1 Unit =1,000 milliunits

TO MAKE SINGLE-STRENGTH IV SOLUTION: Add 10 Units
of Pitocin to 1 litre of compatible IV fluid

TO INFUSE: Convert prescribed milliunits/min to mL/hr and set
infusion pump. IV infusion pump MUST be used for client safety.

AMOUNT ORDERED: 5 milliunits/min

CALCULATIONS: 10 Units/1 L = 10000,000 milliunits/1,000 mL
OR 10 milliunits/1 mL.
10 milliunits/1 mL = 5 milliunits/X mL
Cross-multiply to get 5 = 10X
X = .5, so .5 mL/min
Multiply by 60 minutes to get amount infused per hour.
THINK: 5 milliunits = .5 mL/min
.5 mL/min x60 min/hr =30 mL/hr (.5x60 =30)
Set the infusion pump for 30 mL/hr.

Q12

NOTE 1 Unit =500 milliunits

TO MAKE SINGLE-STRENGTH IV SOLUTION: Add 60 Units
of Pitocin to 1 litre of compatible IV fluid (BY CONVERTING TO 60 UNITS/1000ML)

TO INFUSE: Convert prescribed milliunits/min to mL/hr and set
infusion pump. IV infusion pump MUST be used for client safety.

AMOUNT ORDERED: 6 milliunits/min

CALCULATIONS: 60 Units/1 L = 60000, milliunits/1,000 mL
OR 60 milliunits/1 mL.
60 milliunits/1 mL = 6 milliunits/X mL
Cross-multiply to get 6 = 60X
X = .1, so .1 mL/min
Multiply by 60 minutes to get amount infused per hour.
THINK: 6 milliunits = .1 mL/min
.1 mL/min x60 min/hr =6 mL/hr (.1x60 =6)

BY CONVERTING BACK TO 30 UNITS PER LITRE
6/2=3

Set the infusion pump for 3 mL/hr.

Q13

NOTE 1 Unit =500 milliunits

TO MAKE SINGLE-STRENGTH IV SOLUTION: Add 60 Units
of Pitocin to 1 litre of compatible IV fluid (BY CONVERTING TO 60 UNITS/1000ML)

TO INFUSE: Convert prescribed milliunits/min to mL/hr and set
infusion pump. IV infusion pump MUST be used for client safety.

AMOUNT ORDERED: 3 milliunits/min

CALCULATIONS: 60 Units/1 L = 60000, milliunits/1,000 mL
OR 60 milliunits/1 mL.
60 milliunits/1 mL = 3 milliunits/X mL
Cross-multiply to get 3 = 60X
X = .05, so .05 mL/min
Multiply by 60 minutes to get amount infused per hour.
THINK: 3 milliunits = .05 mL/min
.05 mL/min x60 min/hr =3 mL/hr (.05x60 =3)

BY CONVERTING BACK TO 30 UNITS PER LITRE
3/2=1.5

Set the infusion pump for 1.5 mL/hr.

Q14

NOTE 1 Unit =1000 milliunits

TO MAKE SINGLE-STRENGTH IV SOLUTION: Add 30Units
of Pitocin to 1 litre of compatible IV fluid

TO INFUSE: Convert prescribed milliunits/min to mL/hr and set
infusion pump. IV infusion pump MUST be used for client safety.

AMOUNT ORDERED: 7 milliunits/min

CALCULATIONS: 30 Units/1 L = 30000, milliunits/1,000 mL
OR 30 milliunits/1 mL.
30 milliunits/1 mL = 7 milliunits/X mL
Cross-multiply to get 7 = 30X
X = 0.23, so .23 mL/min
Multiply by 60 minutes to get amount infused per hour.
THINK: 7 milliunits = .23 mL/min
.23 mL/min x60 min/hr =14 mL/hr (.23x60= 14)

Set the infusion pump for 14 mL/hr.

Q15

NOTE 1 Unit =250 milliunits

TO MAKE SINGLE-STRENGTH IV SOLUTION: Add 40Units
of Pitocin to 1 litre of compatible IV fluid

TO INFUSE: Convert prescribed milliunits/min to mL/hr and set
infusion pump. IV infusion pump MUST be used for client safety.

AMOUNT ORDERED: 4 milliunits/min

CALCULATIONS: 40 Units/1 L = 40000, milliunits/1,000 mL
OR 40 milliunits/1 mL.
40 milliunits/1 mL = 4 milliunits/X mL
Cross-multiply to get 4 = 40X
X = 0.1, so .1 mL/min
Multiply by 60 minutes to get amount infused per hour.
THINK: 4 milliunits = .1 mL/min
.1 mL/min x60 min/hr =6 mL/hr (.1x60=6)

Converting back to 10 units

6/4=1.5

Set the infusion pump for 1.5 mL/hr.

Q16

NOTE 1 Unit =1000 milliunits

TO MAKE SINGLE-STRENGTH IV SOLUTION: Add 20Units
of Pitocin to 1 litre of compatible IV fluid

TO INFUSE: Convert prescribed milliunits/min to mL/hr and set
infusion pump. IV infusion pump MUST be used for client safety.

AMOUNT ORDERED: .01 milliunits/min

CALCULATIONS: 20 Units/1 L = 20000, milliunits/1,000 mL
OR 20 milliunits/1 mL.
20 milliunits/1 mL = .01 milliunits/X mL
Cross-multiply to get .01 = 20X
X = .0005, so .0005 mL/min
Multiply by 60 minutes to get amount infused per hour.
THINK: .01 milliunits = .0005 mL/min
.0005 mL/min x60 min/hr =0.03 mL/hr (.0005x60=0.03)

Set the infusion pump for 0.03 mL/hr.