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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Correct Answer is ["0.6"]

Explanation

Here's the corrected calculation for the volume to be administered:

Dosage: 60 mg

Concentration: 100 mg/mL

Volume to administer:

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

Volume (mL) = 60 mg / 100 mg/mL

Volume (mL) = 0.6 mL

Therefore, the nurse should administer 0.6 mL of enoxaparin sodium injection.

Correct Answer is ["83"]

Explanation

Here's how to calculate the infusion pump rate (mL/hour) for the penicillin G administration:

We know:

Total penicillin G dose: 20 million units (given)

Total volume of saline solution: 2 liters (given) = 2000 mL (convert liters to mL)

Penicillin G concentration in saline delivered by pharmacy: 10 million units/liter (given)

We need to find:

Infusion rate (mL/hour)

Steps:

Calculate the concentration of penicillin G in the final infusion solution:

We cannot directly add the penicillin G units to the saline volume because they represent different quantities. Penicillin G is measured in units, while saline volume is measured in liters (or mL).

We need to find the total volume of saline containing the prescribed dose of penicillin G:

We know the total penicillin G dose (20 million units) and the concentration of penicillin G in the saline delivered by pharmacy (10 million units/liter).

Volume of saline containing the dose (liters) = Total penicillin G dose (units) / Concentration of penicillin G in saline (units/liter)

Volume of saline containing the dose (liters) = 20 million units / 10 million units/liter

Volume of saline containing the dose (liters) = 2 liters (This confirms we received the correct concentration from the pharmacy to deliver the prescribed dose)

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Naxlex Comprehensive Predictor Exams

Correct Answer is ["0.6"]

Explanation

Correct Answer is ["83"]

Explanation

The healthcare provider prescribes an intravenous (IV) bolus of diltiazem 0.25 mg/kg for a client with atrial fibrillation. The client weighs 178 pounds. How many mg should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest whole number.)

A client with deep vein thrombosis (DVT) is receiving a continuous IV infusion of heparin sodium 20,000 units in 5% dextrose injection 500 mL at the rate of 25 mL/hour. How many units of heparin should the client receive in 12 hours? (Enter numeric value only.)

A client receives a prescription for oxytocin 2 milliunits/min intravenously (IV) for labor augmentation. The IV bag contains oxytocin 20 units in lactated Ringer's 1 liter. How many mL/hour should the nurse program the infusion pump to deliver? (Enter numerical value only.)

The healthcare provider prescribes 0.075 mg of levothyroxine PO daily. The medication is labeled, "50 mcg tablets." How many tablets should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.)

The healthcare provider prescribes enoxaparin 1 mg/kg SUBQ every 12 hours for a client who weighs 132 pounds. The medication is available in 60 mg/0.6 mL prefilled syringe. How many mL should the nurse administer per day? (Enter numerical value only.)

The nurse is preparing to administer ampicillin PO to a 12-year-old child with impetigo who weighs 88 pounds. The prescription is for 50 mg/kg/day. How many mg should the child receive per day? (Enter numeric value only.)

A client who weighs 154 lb receives a prescription for epoetin alfa 50 units/kg SUBQ 3 times a week. The medication is available in 2,000 units/mL vial. How many mL should the nurse administer with each dose? (Enter numerical value only. If rounding is required, round to the nearest tenth.)