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A child who weighs 42 kg receives a prescription for methy/prednisolone succinate 5 mg/kg/day IV in divided doses every 6 hours. The medication is available in "Methy prednisolone succinate 40 mg/mL vials." How many mL. should the nurse administer with each dose? (Enter numerical value only. If rounding is required, round to the nearest tenth)

Answer and Explanation

The Correct Answer is ["0.4"]

Given:

Ordered dose of methylprednisolone succinate: 1.5 mg/kg/day IV in divided doses every 6 hours

Child's weight: 42 kg

Concentration of methylprednisolone succinate: 40 mg/mL

Step 1: Calculate the total daily dose of methylprednisolone succinate:

Total daily dose (mg) = Ordered dose (mg/kg/day) x Child's weight (kg)

Total daily dose (mg) = 1.5 mg/kg/day x 42 kg

Total daily dose (mg) = 63 mg/day

Step 2: Calculate the dose per administration:

Since the medication is given every 6 hours, there are 4 administrations per day.

Dose per administration (mg) = Total daily dose (mg) / Number of administrations per day

Dose per administration (mg) = 63 mg/day / 4 administrations/day

Dose per administration (mg) = 15.75 mg

Step 3: Calculate the volume to be administered per dose:

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

Volume (mL) = 15.75 mg / 40 mg/mL

Volume (mL) = 0.39375 mL

Step 4: Round to the nearest tenth:

Volume (mL) ≈ 0.4 mL

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Naxlex Comprehensive Predictor Exams

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Free Nursing Study Resources

Correct Answer is ["1.3"]

Explanation

Given:

Ordered dose of amoxicillin: 25 mg/kg/day

Child's weight: 18 pounds

Concentration of amoxicillin suspension: 400 mg/5 mL

Step 1: Convert child's weight from pounds to kilograms:

1 pound (lb) = 0.453592 kilograms (kg)

Child's weight in kg = 18 lbs x 0.453592 kg/lb = 8.164656 kg

Step 2: Calculate the total daily dose of amoxicillin:

Total daily dose (mg) = Ordered dose (mg/kg/day) x Child's weight (kg)

Total daily dose (mg) = 25 mg/kg/day x 8.164656 kg

Total daily dose (mg) = 204.1164 mg/day

Step 3: Calculate the dose per administration:

Since the medication is given every 12 hours, there are 2 administrations per day.

Dose per administration (mg) = Total daily dose (mg) / Number of administrations per day

Dose per administration (mg) = 204.1164 mg/day / 2 administrations/day

Dose per administration (mg) = 102.0582 mg

Step 4: Calculate the volume to be administered per dose:

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

Volume (mL) = 102.0582 mg / (400 mg/5 mL)

Volume (mL) = 102.0582 mg x (5 mL / 400 mg)

Volume (mL) = 1.2757275 mL

Step 5: Round to the nearest tenth:

Volume (mL) ≈ 1.3 mL

Correct Answer is ["120"]

Explanation

Given:

Ordered dose of Labetalol HCl: 2 mg/minute

Concentration of Labetalol HCl: 200 mg in 200 mL (1 mg/mL)

Step 1: Calculate the infusion rate in mg/hour:

Infusion rate (mg/hour) = Ordered dose (mg/minute) x 60 minutes/hour

Infusion rate (mg/hour) = 2 mg/minute x 60 minutes/hour

Infusion rate (mg/hour) = 120 mg/hour

Step 2: Calculate the infusion rate in mL/hour:

Infusion rate (mL/hour) = Infusion rate (mg/hour) / Concentration (mg/mL)

Infusion rate (mL/hour) = 120 mg/hour / 1 mg/mL

Infusion rate (mL/hour) = 120 mL/hour

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Naxlex Comprehensive Predictor Exams

Correct Answer is ["1.3"]

Explanation

The healthcare provider prescribes a continuous infusion of labetalol HCl at 2 mg/minute. "Labetalol HCI Injection USP 200 mg in 200 mL of 5% Dextrose Injection," is delivered to the unit. How many mL/hour should the nurse program the infusion pump? (Enter numerical value only.)

Correct Answer is ["120"]

Explanation

The healthcare provider prescribes an IV solution of regular insulin 100 units in 250 mL of 0.45% saline to infuse at 12 units/hour. The nurse should program the infusion pump to deliver how many mL/hour? (Enter numeric value only.)

A client who weighs 176 pounds receives a prescription for filgrastim 5 mcg/kg/daily subcutaneously for 14 days. The medication is available in 300 mcg/mL vial. How many mL should the nurse administer? (Enter numerical value only. If rounding is required, round to the nearest tenth.)

A client receives a prescription for 1 liter of lactated Ringer's IV to be infused over 8 hours. The IV administration set delivers 20 gtt/mL. How many gtt/min should the nurse regulate the infusion? (Enter numerical value only. If rounding is required, round to nearest whole number.)

A client on the palliative care unit is receiving midazolam 3 mg SUBQ every 2 hours PRN for terminal agitation and intractable hiccups. The medication iS available in a 5 mL ampoule labeled. "2 mg/mL." How many mL should the nurse administer for each dose? (Enter the numerical value only.)

The nurse is initiating a 500 mL IV of normal saline at 60 mL/hour for a client with heart failure. How many hours should the IV infuse? (Enter numeric value only. If rounding is required, round to the nearest tenth.)