The healthcare provider prescribes epinephrine 0.01 mg/kg IM for an adolescent with an acute asthma episode who weighs 110 pounds. The available medication is labeled, 1 mg/mL. Based on the client's weight, how many mL should the nurse administer to this client? (Enter numerical value only, rounded to the nearest tenth.)

Answer and Explanation

The Correct Answer is ["0.5"]

here's how to calculate the volume (mL) of epinephrine the nurse should administer:

1. Client weight conversion:

Client weight: 110 pounds

Since medication dosage is based on weight per kilogram (kg), we need to convert the weight to kg for accurate calculation.

Conversion factor: 1 kg = 2.205 lbs

Client weight (kg) = 110 pounds / 2.205 lbs/kg

Client weight (kg) = 50 kg (round to nearest whole number)

2. Epinephrine dosage:

Prescribed dose: 0.01 mg/kg (given)

3. Epinephrine concentration:

The medication is labeled 1 mg/mL. This indicates there are 1 mg of epinephrine per 1 mL of solution.

4. We need to find the volume (mL) containing the prescribed dose (based on weight) of epinephrine (0.01 mg/kg) considering the concentration (1 mg/mL) in the vial.

Total epinephrine dose (mg): Dose (mg/kg) x Client weight (kg)

Total epinephrine dose (mg): 0.01 mg/kg * 50 kg

Total epinephrine dose (mg): 0.5 mg (round to nearest tenth)

Volume to administer (mL): Total dose (mg) / Concentration (mg/mL)

Volume to administer (mL): 0.5 mg / 1 mg/mL

Volume to administer (mL): 0.5 mL (round to nearest tenth)

Therefore, the nurse should administer approximately 0.5 mL of epinephrine intramuscularly.

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Free Nursing Study Resources

Correct Answer is ["120"]

Explanation

Here's how to calculate the rate (mL/hour) for the infusion pump to deliver lidocaine 4 mg/minute:

1. Lidocaine concentration:

The medication bag contains 1 gram of lidocaine in 500 mL of dextrose 5% in water.

Convert grams to milligrams: 1 gram = 1000 milligrams

Lidocaine concentration (mg/mL) = Total lidocaine (mg) / Volume (mL)

Lidocaine concentration (mg/mL) = 1000 mg / 500 mL

Lidocaine concentration (mg/mL) = 2 mg/mL (round to nearest whole number)

2. Prescribed lidocaine dose: 4 mg/minute (given)

3. We need to find the volume delivered per hour (mL/hour) to achieve the prescribed lidocaine dose (4 mg/minute) considering the concentration (2 mg/mL) in the bag.

Infusion rate (mL/hour) = Dose (mg/minute) x Minutes per hour / Concentration (mg/mL)

However, there's a mismatch in units between dose (mg/minute) and concentration (mg/mL).

To address this, we can convert the infusion duration (minutes) to hours to match the concentration units (mg/mL).

Conversion factor: 60 minutes/hour

Infusion rate (mL/hour) = Dose (mg/minute) x (60 minutes/hour) / Concentration (mg/mL)

Infusion rate (mL/hour) = 4 mg/minute * 60 minutes/hour / 2 mg/mL

Infusion rate (mL/hour) = 120 mL/hour (round to nearest whole number)

Therefore, the nurse should program the infusion pump to deliver approximately 120 mL/hour.

Correct Answer is ["2000"]

Explanation

Here's how to calculate the total milligrams of ampicillin the child should receive per day:

Convert child's weight to kilograms:

Weight (kg) = Weight (lbs) / Conversion factor (lbs/kg)

Weight (kg) = 88 lbs / 2.205 lbs/kg

Weight (kg) = 40 kg (round to nearest whole number)

Calculate the total daily dosage:

Daily dosage (mg) = Dose per kg (mg/kg/day) * Weight (kg)

Daily dosage (mg) = 50 mg/kg/day * 40 kg

Daily dosage (mg) = 2000 mg

Therefore, the child should receive 2000 mg of ampicillin per day.

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Naxlex Comprehensive Predictor Exams

The healthcare provider (HCP) prescribes lidocaine 4 mg/minute IV for a client experiencing premature ventricular contractions. The IV bag contains "Lidocaine 1 gram in dextrose 5% in water 500 mL. How many mL/hr should the nurse program the infusion pump to deliver? (Enter numerical value only.)

Correct Answer is ["120"]

Explanation

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.)

Correct Answer is ["2000"]

Explanation

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A client scheduled for coronary artery bypass surgery is to receive an intravenous (IV) infusion of 1 gram cefazolin in 50 ml. 0.9% sodium chloride, USP over 30 minutes. The nurse should program the infusion pump to deliver how many mL/hour? (Enter numeric value only, as a whole number.)

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.)