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A child who weighs 44 pounds with otitis media receives a prescription for azithromycin 10 mg/kg once, then 10 mg/kg daily for 4 days. The medication is available in a solution containing 200 mg/5mL. How many mL should the nurse administer on the first day of the treatment regimen? (Enter numeric value only.)
Answer and Explanation

The Correct Answer is ["5"]

Here's how to calculate the volume of medication the nurse should administer on the first day:

1. Convert child's weight to kilograms (kg):

We know 1 kg = 2.205 pounds.

Child weight (kg) = 44 pounds / 2.205 pounds/kg = 20 kg (round to nearest whole number for this calculation).

2. Calculate the total azithromycin medication for the first day (mg):

Prescribed dosage (mg/kg): 10 mg/kg

Child weight (kg): 20 kg (rounded value from step 1)

Total medication on day 1 (mg) = Dosage (mg/kg) x Client weight (kg)

Total medication on day 1 (mg) = 10 mg/kg x 20 kg = 200 mg

3. Determine the volume (mL) needed based on the medication concentration:

Medication concentration (mg/mL): 200 mg/5 mL (given)

Total medication on day 1 (mg): 200 mg (calculated in step 2)

Volume to administer (mL) = Total medication (mg) / Concentration (mg/mL)

Volume to administer (mL) = 200 mg / 200 mg/5 mL

Volume to administer (mL) = 5 mL

Therefore, the nurse should administer 5 mL of the azithromycin solution on the first day.


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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 ["18"]

Explanation

Here's how to calculate the infusion rate (mL/hour) for the nurse to administer furosemide 60 mg IV every 12 hours:

1. Furosemide dose per administration:

Dose = 60 mg (given)

2. Dosage frequency (conversion from hours to minutes):

Frequency (minutes) = 12 hours/dose * 60 minutes/hour

Frequency (minutes) = 720 minutes/dose

3. Medication concentration:

Concentration = 10 mg/mL (given)

4. Infusion duration:

Duration = 20 minutes (given)

5. We need to find the total volume (mL) of the medication to be delivered and then convert that volume to a rate per hour (mL/hour).

Steps:

a. Calculate the volume to be infused (mL):

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

Volume (mL) = 60 mg / 10 mg/mL

Volume (mL) = 6 mL

b. Convert infusion duration from minutes to hours:

Infusion time (hours) = Infusion time (minutes) / 60 minutes/hour

Infusion time (hours) = 20 minutes / 60 minutes/hour

Infusion time (hours) = 1/3 hour

c. Calculate the infusion rate (mL/hour):

Infusion rate (mL/hour) = Volume (mL) / Infusion time (hours)

Infusion rate (mL/hour) = 6 mL / (1/3 hour)

Infusion rate (mL/hour) = 18 mL/hour

Therefore, the nurse should set the infusion pump to deliver approximately 18 mL/hour.

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