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A child who weighs 40 kg receives a prescription for acetaminophen 15 mg/kg/dose PO every 4 to 6 hours PRN for fever. What is the maximum daily dose the nurse should administer? (Enter the numerical value only.)
Answer and Explanation

The Correct Answer is ["3600"]

Here's how to calculate the maximum daily dose of acetaminophen for the child:

Calculate the maximum dose per administration:

Maximum dose per kg per administration = 15 mg/kg (given)

Child's weight = 40 kg (given)

Since this is a PRN medication (given as needed), we will calculate the maximum dose per administration based on the prescribed dosage.

Maximum dose per administration = 15 mg/kg/dose * 40 kg

Maximum dose per administration = 600 mg (round to nearest whole number)

Calculate the number of administrations in a 24-hour period (maximum):

Frequency: Every 4 to 6 hours PRN (given)

Since this is a PRN medication, we will assume the maximum frequency (every 4 hours) for calculating the maximum daily dose.

Number of administrations (maximum) = 24 hours / Frequency (hours/administration)

Number of administrations (maximum) = 24 hours / 4 hours/administration

Number of administrations (maximum) = 6 administrations

Calculate the maximum daily dose:

Maximum daily dose = Maximum dose per administration x Number of administrations (maximum)

Maximum daily dose = 600 mg/administration * 6 administrations

Maximum daily dose = 3600 mg

Therefore, the maximum daily dose the nurse should administer is 3600 mg.


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Related Questions

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.

Correct Answer is ["2.4"]

Explanation

Here's how to calculate the volume (mL) the nurse should administer for cefazolin:

1. We know the following:

Prescribed dose: 800 mg cefazolin IM every 6 hours (given)

Vial content: 1 gram cefazolin (given)

However, we need to consider the reconstitution process for accurate dosage calculation.

Reconstitution information:

For IM use, add 2.5 mL sterile water for injection.

This dilution creates a total volume of 3.0 mL.

3. We need to find the concentration of cefazolin in the reconstituted solution (mg/mL).

Concentration (mg/mL) = Total drug amount (mg) / Total volume (mL) after reconstitution

Concentration (mg/mL) = 1 gram (which is 1000 mg) / 3.0 mL

Concentration (mg/mL) = 333.33 mg/mL (round to nearest tenth)

4. Now, we can find the volume to administer for the prescribed dose (800 mg) considering the concentration (333.33 mg/mL) in the reconstituted solution.

Volume to administer (mL): Dose (mg) / Concentration (mg/mL)

Volume to administer (mL): 800 mg / 333.33 mg/mL

Volume to administer (mL): 2.40 mL (round to nearest tenth)

Therefore, the nurse should administer approximately 2.4 mL of the reconstituted cefazolin solution intramuscularly.

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