The healthcare provider prescribes amoxicillin 500 mg PO every 8 hours for a child who weighs 88 pounds. The recommended maximum safe dose is 50 mg/kg/24 hours. The available suspension is labeled, "Amoxicillin Suspension 250 mg/5 mL. Based on this child's weight, how many mL should the nurse administer? (Enter numerical value only. If rounding is required, round to the whole number.)

Answer and Explanation

The Correct Answer is ["10"]

First, we need to convert the child’s weight from pounds to kilograms since the dosage is prescribed in mg/kg. We know that 1 kg is approximately 2.20462 pounds. So,

Weight in kg= Weight in pounds/2.20462 = 2.2046288 ≈ 39.92kg

The prescribed dosage is 500 mg every 8 hours, which means three doses per day (since there are 24 hours in a day). Therefore, the total daily dosage is 500 mg * 3 = 1500 mg.

The recommended maximum safe dose is 50 mg/kg/24 hours. Therefore, the maximum safe dosage for this child would be:

Maximum safe dosage in mg=Dosage per kg×Weight in kg=50mg/kg×39.92kg=1996mg

Since the prescribed daily dosage (1500 mg) is less than the maximum safe dosage (1996 mg), it is safe to administer the prescribed dosage.

The medication is available in a concentration of 250 mg/5 mL. Therefore, the volume to be administered per dose in mL would be:

Volume in mL= Dosage per dose in mg/ Concentration in mg/mL = 500mg/50mg/mL = 10mL

So, the nurse should administer 10 mL of Amoxicillin Suspension per dose.

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Free Nursing Study Resources

Correct Answer is ["17"]

Explanation

Here's how to calculate the drip rate (drops/minute) for the ganciclovir infusion:

1. We know:

Ganciclovir dose: 375 mg (given)

Infusion bag volume: 150 mL (given)

Infusion time: 90 minutes (given) = 1.5 hours (convert minutes to hours)

Drip chamber calibration: 10 drops/mL (given)

2. We need to find:

Drip rate (drops/minute)

3. Steps:

Calculate the concentration of ganciclovir in the bag (assuming all medication is in the bag):

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

Concentration (mg/mL) = 375 mg / 150 mL

Concentration (mg/mL) = 2.5 mg/mL

Calculate the total volume to infuse (considering the prescribed dose):

We already know the volume of the bag (150 mL), but this might contain more volume than needed to deliver the prescribed dose.

Calculate the volume to infuse based on the dose and concentration:

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

Volume to infuse (mL) = 375 mg / 2.5 mg/mL

Volume to infuse (mL) = 150 mL (This confirms that the full bag volume delivers the prescribed dose)

Calculate the infusion rate (mL/hour):

Infusion rate (mL/hour) = Total volume to infuse (mL) / Infusion time (hours)

Infusion rate (mL/hour) = 150 mL / 1.5 hours

Infusion rate (mL/hour) = 100 mL/hour

Calculate the drip rate (drops/minute):

Drip rate (drops/minute) = Infusion rate (mL/hour) x Drip chamber calibration (drops/mL)

Drip rate (drops/minute) = 100 mL/hour x 10 drops/mL

Drip rate (drops/minute) = 1000 drops/hour (convert to minutes)

Drip rate (drops/minute) = 1000 drops/hour / 60 minutes/hour

Drip rate (drops/minute) = 16.67 drops/minute (round to nearest whole number as requested)

Therefore, the nurse should regulate the gravity infusion at approximately 17 drops/minute.

Correct Answer is ["50"]

Explanation

First, let’s calculate the current infusion rate in mL/hour.

The IV solution contains 20,000 units of heparin in 500 mL, so the concentration is:

Concentration = Totalunits/ Totalvolume = 20,000units /500mL = 40units/mL

The client is currently receiving 1,800 units/hour. At a concentration of 40 units/mL, this dosage is equivalent to:

Currentrate = Dose/ Concentration = 1,800units/hour / 40units/mL = 45mL/hour

The healthcare provider prescribed an increase of 5 mL/hour in the IV rate. Therefore, the new rate should be:

Newrate = Currentrate + Increase = 45mL/hour + 5mL/hour = 50mL/hour

So, the nurse should set the infusion pump to deliver 50 mL/hour. If rounding is required, this is already rounded to the nearest whole number.

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Naxlex Comprehensive Predictor Exams

Correct Answer is ["17"]

Explanation

Correct Answer is ["50"]

Explanation

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