A client is receiving an intravenous infusion of 1.5 L of saline solution at a rate of 75 mL/hr.
How many hours will it take to finish the infusion at the current rate?
10 hours
7.5 hours
20 hours
15 hours
The Correct Answer is C
To find the hours to finish the infusion, you need to calculate the following:
- The volume of saline solution in milliliters
- The time in hours using the formula: Time (h) = Total volume (mL) / Infusion rate (mL/h)
First, convert the volume of saline solution from liters to milliliters by multiplying by 1000:
1.5 L x 1000 = 1500 mL
Next, use the formula for time to find how many hours it will take to infuse the saline solution at the current rate:
Time (h) = Total volume (mL) / Infusion rate (mL/h)
Since the total volume is 1500 mL and the infusion rate is 75 mL/h, plug in these values into the formula:
Time (h) = 1500 mL / 75 mL/h
Simplify and solve for the time:
Time (h) = 20 h
Therefore, it will take **20 hours** to finish the infusion at the current rate.
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Related Questions
Correct Answer is A
Explanation
The IV infusion will be completed at 13:20.
This answer is correct because it is based on a simple division and addition calculation. The nurse can divide the total volume of the infusion by the infusion rate to get the duration of the infusion in hours, as follows:
1000 mL / 250 mL/hr = 4 hr
Therefore, the infusion will take 4 hours to complete. The nurse can add 4 hours to the start time of the infusion to get the end time, as follows:
09:20 + 4:00 = 13:20
Therefore, the IV infusion will be completed at 13:20.
Correct Answer is B
Explanation
To find the dose of ondansetron, you need to use the formula for weight-based dosage calculation:
Dose (mg) = Weight (kg) x Prescribed dose (mg/kg)
Since the client's weight is 70 kg and the prescribed dose is 0.34 mg/kg, plug in these values into the formula:
Dose (mg) = 70 kg x 0.34 mg/kg
Simplify and solve for the dose:
Dose (mg) = 23.8 mg
Therefore, the client should receive **23.8 mg** of ondansetron prior to chemotherapy.
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