Heparin+Math+Calculations+and+ Answers+%281%29 PDF

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Heparin Math Calculation Problem 1: The MD orders your patient to start an IV Heparin drip at 12 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 25,000 units/250 mL. The patient weighs 189 lbs. What is the flow rate you will set the IV pump at (mL/hr)?

Problem 2: Your patient has a Heparin drip running at 24 mL/hr. The Heparin bag reads 12,500 units/250 mL. How many units per hour is the patient receiving?

Problem 3: Your patient’s recent PTT is 42. 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 16 units/kg/hr from a bag that reads 25,000 units/250 mL. The patient weighs 163 lbs. How many units will the patient receive as a bolus, and what will you change the flow rate to (mL/hr)?

Problem 4: Your pt has an order for a heparin bolus of 10,000 u, followed by an IV drip of 18 u/kg/hr. Your pt weighs 167 lbs. You have a heparin vial labeled "Heparin 5,000 u/mL." a. What will you give your pt for the initial bolus? b. What will you set your IV pump at a continuous dose drip if your 1000mL bag has a total of 50,000 u of heparin?

Problem 5: Your pt has an order to receive a heparin bolus of 4,000 u, followed by an IV drip of 14 u/kg/hr. Your pt weighs 203 lbs. You have a heparin vial labeled "Heparin 1,000 u/mL." a, What will you give your pt for the initial bolus? b. What will you set your IV pump at for a continuous drip if your 1000mL bag is labeled 40,000 u of heparin?

Heparin Math Calculation

Answers: Problem 1: First, determine what you are solving for: flow rate (mL/hr) Second, pick out the correct information you need to solve your problem (watch out for numbers that are distractors). Here is the information you need to solve this problem: 

MD’s order: 12 units/kg/hr

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The bag of Heparin you will be using: 25,000 units/250 mL

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Patient’s weight: 189 lbs

Now, solve: 189 lbs x 1 kg x 12 units/hr x 250 mL = 567,000 = 10.309090 = 10.3 mL/hr 1 2.2 lbs 1 kg 25,000 units 55,000 Answer: 10.3 mL/hr

Problem 2: First, determine what you are solving for: units/hr Second, pick out the correct information you need to solve your problem (watch out for numbers that are distractors). Here is the information you need to solve this problem: 

Current flow rate: 24 mL/hr



The bag of Heparin you are using: 12,500 units/250 mL

Now, solve: 24 mL x 12,500 units = 300,000 = 1,200 units/hr 1 hr 250 mL 250 Answer: 1200 units/hr Problem 3: First, determine what you are solving for: units for this bolus AND NEW flow rate (mL/hr) Second, pick out the correct information you need to solve your problem (watch out for numbers that are distractors). Here is the information you need to solve this problem: 

Protocol dictates based on PTT to: INCREASE drip by 2 units/kg/hr (current dose is 16 units/kg/hr) 

NEW dose: 18 units/kg/hr

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Bolus needed due to PTT result: 30 units/kg

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The bag of Heparin are using: 25,000 units/250 mL

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Patient’s weight: 163 lbs

Now, solve: 163 lbs x 1 kg = 74.0909 = 74.1 x 30 = 2,223 units 

2 lbs

Current dose: 16 units/kg/hr….increase by 2 units/kg/hr which will equal 18 units/kg/hr 163 lbs x 1 kg x 18 units/hr x 250 mL = 733,500 = 13.336363 = 13.3 mL/hr 1 2.2 lbs 1 kg 25,000 units 55,000 Answer: Units for bolus: 2223 units New flow rate: 13.3 mL/hr Problem 4: A. 2mL bolus B. 1368 u/hr = 27.4 mL/hr

Problem 5: A. 4 mL bolus B. 1288 u/hr = 32.3 mL/hr...