A client is prescribed 500 mL of a medication that is available in 2 mg/mL vials. How many mg of the medication should the client receive?

250 mg

500 mg

1000 mg

1500 mg

Answer and Explanation

The Correct Answer is C

To calculate the total amount of medication the client should receive, multiply the volume of the medication by its concentration:

500 mL x 2 mg/mL = 1000 mg

Therefore, the client should receive 1000 mg of the medication.

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Correct Answer is D

Explanation

To calculate the amount of drug per minute, divide the total dose by the infusion time in minutes:

5 mg ÷ 2 minutes = 2.5 mg/minute

The patient should receive 2.5 mg of Lopressor per minute for 2 minutes to get a total dose of 5 mg.

A. 100 mL/hr B. 250 mL/hr C. 500 mL/hr D. 1000 mL/hr

Correct Answer is B

Explanation

To calculate the infusion rate in mL/hr, we need to divide the total volume to be infused by the time for infusion and convert the units appropriately.

First, we need to convert the time of infusion from hours to minutes, since most IV pumps use minutes as the time unit.

2 hours x 60 minutes/hour = 120 minutes Next, we can calculate the infusion rate:

500 mL ÷ 120 minutes = 4.17 mL/minute

To convert mL/minute to mL/hour, we multiply by 60:

4.17 mL/minute x 60 minutes/hour = 250 mL/hour

Therefore, the correct answer is B. 250 mL/hr. The nurse should set the IV pump to deliver the LR infusion at a rate of 250 mL/hr to infuse 500 mL over 2 hours.

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A client is prescribed 500 mL of a medication that is available in 2 mg/mL vials. How many mg of the medication should the client receive?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A patient is ordered 5 mg of IV Lopressor (metoprolol tartrate) to be administered over 2 minutes. The concentration is 1 mg/mL. How many milligrams per minute should the patient receive?

Correct Answer is D

Explanation

A physician gives the following order: "Infuse LR, 500 mL over 2 hours." At what rate should the nurse set the IV pump to deliver this infusion (mL/hr)?

Correct Answer is B

Explanation

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