A nurse starts an infusion of 1500 mL of normal saline (NS) for a client at 8:45 am at a flow rate of 2 mL/min. The tubing drop factor is 10 drops/mL.
Calculate the volume of fluid that will be left at 10:00 am.
1236 mL
1250 mL
1336 mL
1350 mL
The Correct Answer is D
To find the volume of fluid that will be left at 10:00 am, you need to calculate the following:
- The time elapsed in minutes from 8:45 am to 10:00 am using the formula: Time elapsed (min) = End time (min) - Start time (min)
- The volume of fluid infused in milliliters (mL) during the time elapsed using the formula: Volume infused (mL) = Flow rate (mL/min) x Time elapsed (min)
- The volume of fluid left in milliliters (mL) at 10:00 am using the formula: Volume left (mL) = Initial volume (mL) - Volume infused (mL)
First, use the formula for time elapsed to find how many minutes have passed from 8:45 am to 10:00 am:
Time elapsed (min) = End time (min) - Start time (min)
Since the end time is 10:00 am and the start time is 8:45 am, plug in these values into the formula:
Time elapsed (min) = 600 min - 525 min
Simplify and solve for the time elapsed:
Time elapsed (min) = 75 min
Next, use the formula for volume infused to find the amount of fluid infused in milliliters during the time elapsed:
Volume infused (mL) = Flow rate (mL/min) x Time elapsed (min)
Since the flow rate is 2 mL/min and the time elapsed is 75 min, plug in these values into the formula:
Volume infused (mL) = 2 mL/min x 75 min
Simplify and solve for the volume infused:
Volume infused (mL) = 150 mL
Then, use the formula for volume left to find the amount of fluid left in milliliters at 10:00 am:
Volume left (mL) = Initial volume (mL) - Volume infused (mL)
Since the initial volume is 1500 mL and the volume infused is 150 mL, plug in these values into the formula:
Volume left (mL) = 1500 mL - 150 mL
Simplify and solve for the volume left:
Volume left (mL) = 1350 mL
Therefore, the volume of fluid that will be left at 10:00 am is **1350 mL**.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
This is a dosage calculation problem. To solve it, we need to use the formula:A
Desired dose ÷ Available dose × Available quantity = Quantity to give
In this case, the desired dose is 30 mg, the available dose is 20 mg/mL, and the available quantity is 1 mL. Plugging these values into the formula, we get:
30 ÷ 20 × 1 = 1.5
Therefore, the nurse should administer **1.5 mL** of liquid oxycodone hydrochloride to the patient.
Correct Answer is D
Explanation
One tablespoon is equal to **14.7867648 milliliters**¹²³⁴. To convert tablespoons to milliliters, you can multiply the value in tablespoons by 14.7867648. For example, 1 tablespoon x 14.7867648 milliliters = 14.7867648 milliliters.
Therefore, to convert 1 tablespoon of mouthwash to milliliters, you can multiply 1 by 14.7867648. The answer is **14.7867648 milliliters**. This is the amount of mouthwash that a patient uses in 1 tablespoon.
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