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A client receives a prescription for a single dose of midazolam 2 mg IV to be administer before a scheduled procedure. The vial is label, *4 mg/2 mL." How many mL should the nurse administer? (Enter numerical value only.)
Answer and Explanation

The Correct Answer is ["1"]

Here's the breakdown:

Prescribed dose: 2 mg midazolam (given)

Vial concentration: 4 mg/2 mL (label)

We need to find the volume containing the 2 mg dose considering the concentration.

Calculation:

Volume (mL) = Dose (mg) / (Concentration (mg/mL) / 2)

We divide the concentration by 2 because we need the volume that delivers 2 mg (half the concentration).

Volume (mL) = 2 mg / (4 mg/mL / 2)

Volume (mL) = 2 mg / 2 mg/mL

Volume (mL) = 1 mL

Therefore, the nurse should administer 1 mL of midazolam to deliver the prescribed dose of 2 mg.


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Related Questions

Correct Answer is ["17"]

Explanation

Let’s calculate the solution step by step:

Calculate the Total Drops in the IV Bag:

The total number of drops in the IV bag can be calculated using the formula:

Totaldrops = VolumeinmL × DropspermL

Substituting the given values:

Totaldrops = 150mL × 10drops/mL = 1500drops

Calculate the Rate in Drops/Minute:

The rate in drops per minute can be calculated using the formula:

Rateindrops/minute = Totaldrops​ / Timeinminutes

Substituting the given values:

Rateindrops/minute = 1500drops/90minutes ​≈ 16.67drops/minute

Since the problem asks for the rate to be rounded to the nearest whole number if necessary, the final rate is 17 drops/minute.

Correct Answer is ["83"]

Explanation

The nurse should set the infusion pump to deliver the entire 2 liters (2000 mL) over the course of 24 hours.

Therefore, the IV pump should be set to deliver:

Rate(mL/hr) = Totalvolume(mL) / Time(hr) ​= 2000mL ​/ 24hr

After performing the calculation, we find that the rate equals 83.33 mL/hr.

So, the nurse should set the infusion pump to deliver 83 mL/hr (rounded to the nearest whole number).

This is because 83 mL of the solution contains the prescribed dose of penicillin G every hour.

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