Heparin drip practice calculation problems for nurses.
These Heparin drip practice problems were designed to help you better understand how to titrate a Heparin drip based on aPTT. You will be required to solve problems that require you to understand: unit/kg/hr, unit/hr, and mL/hr.
Before taking the quiz, don’t forget to watch the free lecture on how to solve heparin drip calculations.
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Heparin Drip Practice Calculation Problems
1. The MD orders your patient to start an IV Heparin drip at 18 units/kg/hr and to administer a loading bolus dose of 30 units/kg IV before initiation of the drip. You’re supplied with a Heparin bag that reads 25,000 units/500 mL. The patient weighs 172 lbs. What is the flow rate you will set the IV pump at (mL/hr) and the amount of units for the IV bolus?
A. 1,569 units; 36.9 mL/hr
B. 2,346 units; 28.1 mL/hr
C. 2,587 units; 19.8 mL/hr
D. 4,236 units; 39.3 mL/hr
The answer is B: 2,346 units; 28.1 mL/hr
2. The MD orders your patient to start an IV Heparin drip at 16 units/kg/hr and to administer a loading bolus dose of 60 units/kg IV before initiation of the drip. You’re supplied with a Heparin bag that reads 12,500 units/250 mL. The patient weighs 198 lbs. What is the flow rate you will set the IV pump at (mL/hr)?
A. 69.6 mL/hr
B. 12.5 mL/hr
C. 43.6 mL/hr
D. 28.8 mL/hr
The answer is D: 28.8 mL/hr
3. Your patient has a Heparin drip running at 36 mL/hr. The Heparin bag reads 12,500 units/250 mL. How many units per hour is the patient receiving?
A. 1,200 units/hr
B. 850 units/hr
C. 1,800 units/hr
D. 1,650 units/hr
The answer is C: 1,800 units/hr
4. Your patient has a Heparin drip running at 29 mL/hr. The Heparin bag reads 10,000 units/ 100 mL. How many units per hour is the patient receiving?
A. 2,900 units/hr
B. 1,590 units/hr
C. 3,352 units/hr
D. 1,980 units/hr
The answer is A: 2,900 units/hr
5. Your patient’s recent PTT is 45. According to protocol, you need to increase the Heparin drip by 2 units/kg/hr and administer 30 units/kg IV bolus. You will recheck the PTT in 6 hours. The patient is currently receiving a Heparin drip at 22 units/kg/hr from a bag that reads 25,000 units/250 mL. The patient weighs 129 lbs. How many units will the patient receive as a bolus, and how many units per kilogram per hour will the patient receive based on the new PTT result?
A. 1,289 units; 24 units/kg/hr
B. 2,500 units; 22 units/kg/hr
C. 1,758 units; 24 units/kg/hr
D. 1,857 units; 24 units/kg/hr
The answer is C: 1,758 units; 24 units/kg/hr
6. You increase your patient’s Heparin drip to 24 units/kg/hr. The Heparin bag reads 25,000 units/ 250 mL. What is the new flow rate (mL/hr)? The patient weights 129 lbs.
A. 15.2 mL/hr
B. 14.1 mL/hr
C. 18.9 mL/hr
D. 23.6 mL/hr
The answer is B: 14.1 mL/hr
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