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A nurse, via an infusion pump, sets up an infusion rate ratio of 2.75 mL/min for a continuous intravenous (IV) fluid for 7 hours.
What is the total volume of IV fluid being infused, in liters?

A.

1.55 L

B.

1.15 L

C.

1.25 L

D.

1.16 L

Answer and Explanation

The Correct Answer is D

To answer this question, we need to calculate the infusion rate in mL per hour, then multiply it by the total time in hours, and finally divide it by 1000 to get the volume in litres.

The infusion rate in mL per hour is the amount of fluid that is given to a patient over a period of time. It can be calculated by dividing the total volume of fluid in mL by the total time in hours². In this case, the infusion rate is:

2.75 mL/min × 60 min/h = 165 mL/h

The total volume of fluid in mL is the infusion rate multiplied by the total time in hours. In this case, the total volume is:

165 mL/h × 7 h = 1155 mL

The volume in litres is the volume in mL divided by 1000. In this case, the volume in litres is:

1155 mL / 1000 = 1.16 L

Therefore, the correct answer is d. 1.16 L.


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Related Questions

Correct Answer is B

Explanation

First, we need to convert the patient's weight from pounds to kilograms using the conversion factor 1 kg =

2.2 lb:

154 lb / 2.2 lb/kg = 70 kg

Next, we need to calculate the dose of nitroprusside in mcg/min using the formula Dose = Weight × Dosage:

Dose = 70 kg × 3 mcg/kg/min = 210 mcg/min

Then, we need to convert the dose of nitroprusside from mcg/min to mg/hr using the conversion factor 1 mg = 1000 mcg:

210 mcg/min × 1 mg/1000 mcg × 60 min/hr = 12.6 mg/hr

Finally, we need to calculate the rate of nitroprusside in mL/hr using the formula Rate = Dose/Concentration:

Rate = 12.6 mg/hr / 100 mg/mL = 0.126 mL/hr

To round to the nearest hundredth, we get 0.13 mL/hr, which is approximately equal to 1.26 mL/hr.

Therefore, the nurse should program the IV pump to deliver nitroprusside at a rate of 1.26 mL/hr.

Correct Answer is B

Explanation

To find the flow rate in mL/hr, you need to use the formula for infusion rate:


Infusion rate (mL/h) = Total volume (mL) / Time (h)


Since the total volume is 2.5 L and the time is 15 hours, plug in these values into the formula:


Infusion rate (mL/h) = 2.5 L / 15 h


However, before you can simplify and solve for the infusion rate, you need to convert the volume from liters to milliliters by multiplying by 1000:


Infusion rate (mL/h) = 2500 mL / 15 h

Simplify and solve for the infusion rate:


Infusion rate (mL/h) = 166.67 mL/h


Therefore, the flow rate for continuous infusion is **166.67 mL/h**.

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