Deck 23: Heparin Calculations

Question 1

A client weighs 70 kg.Heparin infusion: Heparin 25,000 units in 1,000 mL 0.9 % sodium chloride.Order: Bolus with heparin sodium at 90 units/kg,then initiate drip at 20 units/kg/hr.
a.Calculate the heparin bolus dosage: _____
b.Calculate the infusion rate for the IV dosage: _____
c.Determine the rate in mL/hr at which to set the infusion device: _____

Answer 1

a.90 units/kg $\times$ 70 kg = 6,300 units
b.20 units/kg/hr $\times$ 70 kg = 1,400 units/hr
c.1,000 mL:25,000 units = x mL:1,400 units; x = 56 mL/hr

Question 2

Order: 25,000 units of heparin in 250 mL D5W to infuse at 8 mL/hr
units/hr = _____

Answer 2

800

Question 3

Order: 10,000 units of heparin in 500 mL 0.9% NS to infuse at 120 mL/hr
units/hr = _____

Answer 3

2,400

Question 4

Order: 40 units/kg/hr heparin IV.The client weighs 116 lb.How many units should the client receive per hour? _____

Question 5

Order: 25,000 units heparin IV in 250 mL 0.9% NS to infuse at 20 units/kg/hr.The client weighs 165 lb.
a.Weight in kilograms: _____
b.How many units will the client receive per hour? _____

Question 6

Order: Infuse heparin at 2,000 units/hr IV from a solution containing 20,000 units of heparin in 500 mL D5W.How many milliliters will infuse per hour? _____ mL

Question 7

A client weighs 88 kg.Order: Bolus with heparin at 80 units/kg; initiate drip at 18 units/kg/hr.Heparin infusion 25,000 units in 500 mL 0.9 % sodium chloride.
a.Calculate the heparin bolus dosage: _____
b.Calculate the infusion rate for the IV dosage: _____

Question 8

Order: Infuse heparin at 800 units/hr IV from a solution containing 40,000 units in 1,000 mL D5W.How many milliliters will infuse per hour? _____ mL

Question 9

Order: 45,000 units of heparin in 1,000 mL D5 ½/2 NS at 25 mL/hr
units/hr = _____

Question 10

A client weighs 165 lb.Order: Administer a bolus of heparin sodium IV.The hospital protocol is 80 units/kg.How many units will you administer? _____

Question 11

Order: 30,000 units of heparin in 500 mL D5W to infuse at 15 mL/hr
units/hr = _____

Question 12

If a U for units was misread as a zero by the nurse for a heparin dose,the consequences to the client receiving the heparin could be ____________________________.

Question 13

Order: 40 units/kg/hr heparin IV.The client weighs 50 kg.How many units should the client receive per hour? _____

Question 14

A client weighs 220 lb.The hospital protocol for IV heparin drip is 14 units/kg/hr.How many units per hour should the client receive? _____

Question 15

Which solution of heparin is more concentrated: 1,000 units per mL or 10,000 units per mL? _____

Question 16

Order: 50,000 units of heparin in 1 L D5 0.9% NS to infuse at 40 mL/hr
units/hr = _____