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The order from a provider is to start a Heparin drip at 1600 units per hour. The pharmacy provides you with a concentration of heparin that is 250mL NS with 40,000 units of Heparin added. What will be the rate on the infusion pump?
Answer and Explanation

The Correct Answer is ["10"]

Step-by-Step Calculation

Understanding the Problem

Desired heparin dose: 1600 units/hour

Heparin concentration: 40,000 units in 250 mL NS

We need to find the infusion rate in mL/hour.

Calculations

Calculate heparin concentration:

 

Heparin concentration = Total units / Total volume

Heparin concentration = 40,000 units / 250 mL = 160 units/mL

Calculate infusion rate:

 

Infusion rate (mL/hour) = Desired heparin dose (units/hour) / Heparin concentration (units/mL)

Infusion rate = 1600 units/hour / 160 units/mL = 10 mL/hour

The infusion pump rate should be set to 10 mL/hour.


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Related Questions

Correct Answer is ["31"]

Explanation

The nurse should set the IV infusion to deliver 31 gtt/min.

Let's calculate the drip rate

Understanding the problem

We need to administer 3 liters (3000 mL) of DSLR over 24 hours.

The drop factor is 15 gtt/mL.

We need to find the drip rate in gtt/min.

Step-by-step calculation

Convert hours to minutes:

24 hours = 24 X 60 minutes = 1440 minutes

Calculate the infusion rate in mL/min:

Infusion rate (mL/min) = Total volume (mL) / Total time (min)

Infusion rate = 3000 mL / 1440 min = 2.0833 mL/min

Calculate the drip rate:

Drip rate (gtt/min) = Infusion rate (mL/min) X Drop factor (gtt/mL)

Drip rate = 2.0833 mL/min X 15 gtt/mL = 31.25 gtt/min

Round the drip rate to the nearest whole number:

Drip rate ≈ 31 gtt/min

The nurse should set the IV infusion to deliver 31 gtt/min.

Correct Answer is ["75"]

Explanation

Understanding the Problem

Desired magnesium sulfate dose: 3 g/hour

Magnesium sulfate concentration: 40 g in 1000 mL NS

We need to find the infusion rate in mL/hour.

Calculations

Calculate magnesium sulfate concentration:

Concentration = Total grams / Total volume

Concentration = 40 g / 1000 mL = 0.04 g/mL

Calculate infusion rate:

Infusion rate (mL/hour) = Desired magnesium sulfate dose (g/hour) / Concentration (g/mL)

Infusion rate = 3 g/hour / 0.04 g/mL = 75 mL/hour

The infusion pump rate should be set to 75 mL/hour.

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