A nurse administers 25 mg of a medication to a client from a vial that has 50 mg reconstituted single-dose medication. The client requires two intramuscular injections per day. What is the number of vials required for 5 days?

2 vials

5 vials

10 vials

75 vials

Answer and Explanation

The Correct Answer is B

If one dose of medication is 25 mg and each vial contains 50 mg of medication, then each vial contains two doses..

To calculate the number of vials required for 5 days of treatment, we first need to calculate the total number of doses required. Since the client requires two injections per day, the total number of doses required for 5 days would be:.

Total number of doses = 2 doses/day x 5 days. Total number of doses = 10 doses.

Since each vial contains two doses, we need a total of 10/2 = 5 vials for 5 days of treatment..

Therefore, the nurse would need 5 vials of the medication for 5 days of treatment for the client.

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Correct Answer is B

Explanation

We can use the formula for calculating infusion time:. Infusion time = Total volume / Infusion rate.

First, we need to convert the volume of the fluid from liters to milliliters:.

0.75 L = 750 mL.

Next, we can plug in the values we have:. Infusion time = 750 mL / 120 mL/hr.

Infusion time = 6.25 hours.

Since the infusion was started at 9:00 a.m., we can add 6.25 hours to determine when the infusion will be completed:.

9:00 a.m. + 6.25 hours = 3:15 p.m..

Therefore, the infusion will be completed at 3:15 p.m.

A. 75 mL/hr B. 150 mL/hr C. 300 mL/hr D. 450 mL/hr

Correct Answer is C

Explanation

To calculate the rate per hour, divide the amount of magnesium sulfate to be administered by the concentration of magnesium sulfate in the IV bag:

6 grams ÷ 40 grams = 0.15

Then, multiply the result by the volume of the IV bag, which is usually 1000 mL: 0.15 x 1000 mL = 150 mL

This is the amount of fluid that contains 6 grams of magnesium sulfate. To administer this amount over 30 minutes, multiply by 2 to get the rate per hour:

150 mL x 2 = 300 mL/hr.

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A nurse administers 25 mg of a medication to a client from a vial that has 50 mg reconstituted single-dose medication. The client requires two intramuscular injections per day. What is the number of vials required for 5 days?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

At 9:00 a.m. a nurse starts an intravenous (IV) infusion for a client at the rate of 120 mL/hr. If the volume of the fluid is 0.75 L, when will this infusion be completed?

Correct Answer is B

Explanation

A physician orders magnesium sulfate, 6 grams loading dose to be administered over 30 minutes. There are 40 grams of magnesium sulfate in the IV bag. What is the rate per hour to administer the loading dose?

Correct Answer is C

Explanation

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