A physician orders Toradol (ketorolac) 30 mg IV push every 6 hours x 4 doses. A nurse has Toradol available as a 30 mg/mL injection.
How many millilitres per dose should the nurse administer to the patient?

0.6 mL

0.4 mL

1 mL

3 mL

Answer and Explanation

The Correct Answer is C

The nurse should administer 1 mL per dose to the patient.

This answer is correct because it is based on a simple ratio and proportion calculation. The nurse can set up a proportion as follows:

30 mg / 1 mL = 30 mg / x mL

Cross-multiplying and solving for x gives:

x = 1 mL

Therefore, the nurse should administer 1 mL of Toradol injection to deliver 30 mg of the medication to the patient.

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Correct Answer is D

Explanation

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**.

A. 125 mL/hr B. 130 mL/hr C. 124 mL/hr D. 114 mL/hr

Correct Answer is A

Explanation

The ﬂow rate of infusion is 125 mL/hr.

This answer is correct because it is based on a simple division and rounding calculation. The nurse should follow these steps to determine the ﬂow rate of infusion:

1) Subtract the start time of the infusion from the end time of the infusion to get the duration of the infusion in hours and minutes, as follows:

15:45 - 06:57 = 8:48

Therefore, the infusion lasted for 8 hours and 48 minutes.

2) Convert the duration of the infusion to hours only by dividing the minutes by 60, since there are 60 minutes in 1 hour. Add this to the hours, as follows:

8 + (48 / 60) = 8.8

Therefore, the infusion lasted for 8.8 hours.

3) Divide the volume of the infusion by the duration of the infusion to get the ﬂow rate in milliliters per hour, as follows:

1000 mL / 8.8 hr = 113.64 mL/hr

Therefore, the ﬂow rate is 113.64 mL/hr.

4) Round the ﬂow rate to the nearest whole number, as follows:

113.64 mL/hr ≈ 114 mL/hr

Therefore, the ﬂow rate is approximately 114 mL/hr.

5) Adjust the ﬂow rate to a standard value that can be set on an IV pump or gravity drip chamber, as follows:

114 mL/hr → 125 mL/hr

Therefore, the ﬂow rate of infusion is 125 mL/hr.

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A physician orders Toradol (ketorolac) 30 mg IV push every 6 hours x 4 doses. A nurse has Toradol available as a 30 mg/mL injection. How many millilitres per dose should the nurse administer to the patient?

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Naxlex Comprehensive Predictor Exams

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.

Correct Answer is D

Explanation

A nurse started a continuous IV infusion of 1 L of normal saline (NS) at 06:57, and the infusion is completed at 15:45. What is the ﬂow rate of infusion in this situation?

Correct Answer is A

Explanation

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A physician orders Toradol (ketorolac) 30 mg IV push every 6 hours x 4 doses. A nurse has Toradol available as a 30 mg/mL injection.
How many millilitres per dose should the nurse administer to the patient?