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The nurse is initiating a prescription for IV dextrose 2.5% in 0.45% sodium chloride (D, 0.5% NS) at 45 mL/hour for a child with dehydration. The nurse attaches a volume-control administration set with a microdrop chamber to the bag of solution. How many microdrops/minute should the nurse regulate the infusion? (Enter the numerical value only. If rounding is required, round to the nearest whole number.)

Answer and Explanation

The Correct Answer is ["45"]

The infusion rate is given as 45 mL/hour.

We know that 1 hour is 60 minutes, so we can convert the rate to mL/minute:

Rate in mL/minute = Rate in mL/hour /divide by 60minutes/hour

= 45mL/hour / 60minutes/hour ≈ 0.75mL/minute

The volume-control administration set with a microdrop chamber delivers 60 microdrops/mL.

Therefore, the rate in microdrops/minute would be:

Rate in microdrops/minute = Rate in mL/minute×Drops per mL = 0.75mL/minute × 60microdrops/mL = 45microdrops/minute

However, the question asks to round the answer to the nearest whole number.

So, the nurse should regulate the infusion to deliver 45 microdrops/minute.

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Free Nursing Study Resources

Correct Answer is ["7.5"]

Explanation

Here's how to calculate the concentration (mg/mL) of the reconstituted ceftazidime solution:

We know:

Total ceftazidime content after reconstitution: 750 mg (given)

Reconstitution volume: 100 mL sterile water (given)

We need to find:

Concentration of ceftazidime in mg/mL after reconstitution

Calculation:

Concentration (mg/mL) = Total amount of medication (mg) / Volume after reconstitution (mL)

Concentration (mg/mL) = 750 mg / 100 mL

Concentration (mg/mL) = 7.5 mg/mL (round to nearest tenth)

Therefore, the reconstituted ceftazidime medication provides 7.5 mg/mL.

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 ["7.5"]

Explanation

Correct Answer is ["83"]

Explanation

The healthcare provider prescribes cyanocobalamin injection 100 mcg IM every 3 days for a client with pernicious anemia. The vial is labeled, "1 mg/mL." How many mL should the nurse administer? (Enter numerical value only. If rounding is required, round to the nearest tenth.)

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.)

An adult client receives a prescription for diphenhydramine 15 mL by mouth (PO) every 12 hours as needed (PRN) for pruritus. The bottle is labeled, "Diphenhydramine 12.5 mg/5 mL." What is the total daily dose in mg that the client receives? (Enter numerical value only.)

A client who weighs 132 pounds receives a prescription for dalteparin 200 units/kg SUBQ once a day for a month. The medication is available in 25,000 units/mL vial. How many mL should the nurse administer? (Enter numerical value. If rounding is required, round to the nearest tenth.)

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 nurse is preparing a dose of ketorolac 12 mg IV using a 1 mL vial containing 30 mg/mL. How many mL should the nurse administer? (Enter numerical value only.)

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.)