Question

The healthcare provider prescribes amiodarone 0.5 mg/min intravenously (IV) for a client with a ventricular dysrhythmia. The IV bag contains amiodarone 360 mg in dextrose 5% in water (D5W) 200 mL. How many mL/hour should the nurse program the infusion pump? (Enter numerical value only. If rounding is required, round to the nearest whole number.)

Answer 1

Correct Answers:

17

Rationale :

🧮The IV bag contains 360 mg in 200 mL, so the concentration is 1.8 mg/mL (360 ÷ 200).

📏To deliver 0.5 mg/min, convert to hourly dose: 0.5 × 60 = 30 mg/hour.

💉Then, 30 ÷ 1.8 = 16.67 ≈ 17 mL/hour.

⚕️This maintains a steady infusion rate to manage ventricular dysrhythmias effectively.

📌Core Message

Convert dose/min to dose/hour, then divide by concentration to determine the infusion rate in mL/hour.

Answer 2

Correct Answers:

3000

Rationale :

🧮The bag contains 50 mg in 250 mL, so concentration = 0.2 mg/mL.

📏Dose prescribed is 10 mg/min, convert to hourly dose: 10 × 60 = 600 mg/hour.

💉600 ÷ 0.2 = 3,000 mL/hour, but this seems off — recheck:

🧪50 ÷ 250 = 0.2 mg/mL → 10 ÷ 0.2 = 50 mL/min × 60 = 3,000 mL/hour.

📌Core Message

Use concentration and minute-to-hour conversion to accurately determine high-rate infusion volumes.

Answer 3

Correct Answers:

75

Rationale :

🧪The concentration is 50 mg in 250 mL, which equals 0.2 mg/mL.

💁‍♂️To deliver 15 mg/hour, divide: 15 ÷ 0.2 = 75 mL/hour

✔50 ÷ 250 = 0.2 mg/mL → 15 ÷ 0.2 = 75 mL/hour

📌Core Message

Divide prescribed hourly dose by drug concentration to find the correct infusion rate.

Answer 4

Correct Answers:

83

Rationale :

📦500 mL over 2 hours = 250 mL/hour.

📏To find gtt/min: (250 ÷ 60) × 20 = 83.3 ≈ 83 gtt/min.

💉The drop factor is crucial for accurately regulating manual IV setups.

🧪Using the correct drip chamber calibration prevents under- or over-infusion.

📌Core Message

Use volume/time × drop factor ÷ 60 to determine gtt/min for gravity infusions.

Answer 5

Correct Answers:

3.8

Rationale :

⚖️The client weighs 35 pounds, which falls in the 34–50.6 lbs range, so receives 45 mg BID.

🧪Suspension is 12 mg/mL, so 45 ÷ 12 = 3.75 ≈ 3.8 mL per dose.

📏Rounding to the nearest tenth ensures accurate pediatric dosing.

💉This weight-based calculation supports correct antiviral administration.

📌Core Message

Use weight-based dosing guidelines and divide by suspension strength to determine volume per dose.

Answer 6

Correct Answers:

10

Rationale :

📦Total volume is 250 mL over 24 hours, so 250 ÷ 24 = 10.42 ≈ 10 mL/hour.

📏Rounding ensures safe programming into the infusion pump.

🧪Consistent rate delivery ensures sustained antianginal effects.

💉This prevents fluctuations in blood pressure and chest pain.

📌Core Message

Calculate hourly rate by dividing total volume by infusion time.

Answer 7

Correct Answers:

0.75

Rationale :

📦Vial concentration: 0.3 mg in 1.2 mL → 0.25 mg/mL.

📏Prescribed: 0.1875 mg ÷ 0.25 mg/mL = 0.75 mL.

💉Precise volume ensures the correct interferon dose is given for MS management.

🧪Accurate measurement is key in administering biologics.

📌Core Message

Use concentration per mL to calculate dose-specific volume accurately.

Answer 8

Correct Answers:

80

Rationale :

⚖️132 lb = 60 kg.

🧪Dose = 2 mcg/kg/min × 60 kg = 120 mcg/min

💁‍♂️convert to hourly: 120 × 60 = 7,200 mcg = 7.2 mg/hour.

📦Bag contains 45 mg in 500 mL = 0.09 mg/mL. 7.2 ÷ 0.09 = 80 mL/hour.

📏This ensures the client receives dopamine at a therapeutic dose.

📌Core Message

Convert dose per minute to hourly mg, then divide by concentration to determine mL/hour.

Answer 9

Correct Answers:

3.5

Rationale :

🧪Ordered dose is 1 mg; concentration = 2 mg/mL → 1 ÷ 2 = 0.5 mL.

📏Dilution instruction = add 3 mL NS → 0.5 + 3 = 3.5 mL total volume.

💉This ensures safe and slow administration for opiate-naive clients.

⚕️Dilution also reduces irritation and allows for better control of IV push timing.

📌Core Message

Calculate medication volume, then add diluent to determine total volume for IV push.

Answer 10

Correct Answers:

80

Rationale :

⚖️132 lb = 60 kg.

🧪2 mcg/kg/min × 60 = 120 mcg/min → 7,200 mcg/hour = 7.2 mg/hour.

📦Solution: 45 mg in 500 mL = 0.09 mg/mL.

💁‍♂️7.2 ÷ 0.09 = 80 mL/hr

📌Core Message

Convert mcg/min to mg/hr, then divide by solution concentration to find infusion rate.

RN HESI Dosage Calculations 2023 Exam-2

No.

6 :
A client with angina pectoris is receiving intravenous (IV) nitroglycerin 50 mg/250 mL of D5W to be infused over 24 hours via pump. How many mL/hour should the nurse program the infusion pump? (Enter numerical value only. If rounding is required, round to the nearest whole number.)

RN HESI Dosage Calculations 2023 Exam-2

No.

6 : A client with angina pectoris is receiving intravenous (IV) nitroglycerin 50 mg/250 mL of D5W to be infused over 24 hours via pump. How many mL/hour should the nurse program the infusion pump? (Enter numerical value only. If rounding is required, round to the nearest whole number.)

6 :
A client with angina pectoris is receiving intravenous (IV) nitroglycerin 50 mg/250 mL of D5W to be infused over 24 hours via pump. How many mL/hour should the nurse program the infusion pump? (Enter numerical value only. If rounding is required, round to the nearest whole number.)