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RN Dosage Calculation Exam 1

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Exam Details !

Title : RN Dosage Calculation Exam 1

Type : Nursing

Category : RN Nursing Exam(s)

Subcategory : ATI Exam(s)

Domain : RN ATI Dosage Calculations

Fragment : N/A

Module : RN-NURSING

Exam Status : active

Rating : 95.00%

Attempts Allowed : 100

Exam Year : 2024

Duration : 50 minutes

Total Questions : 10

Passing Score : 90%

Difficulty : Easy

Instructions : Read each question carefully and select the correct answer. Ensure you manage your time effectively to complete all questions within the given timeframe, as answers cannot be changed after submission.

Description : This exam assesses students' proficiency in dosage calculations, including drug conversions, IV flow rates, weight-based dosing, and safe medication administration. The format includes MCQs and calculation-based questions.

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1 : A nurse is preparing to administer antibiotic X over 20 min. Available is antibiotic X in 50 mL of 0.9% sodium chloride (NSS). The drop factor of the manual IV tubing is 20 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt I min? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Hint : Always convert the infusion time to minutes before using the formula.

Correct Answers:

Rationale :

Use the IV drop rate formula: Total Volume×Drop Factor/Infusion Time (minutes) Substituting values: 50×20/20=50 gtt/min

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2 : A nurse is preparing to administer 0.45% sodium chloride (NaC1) 1000 mL IV to infuse over 8 hr. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero)

Hint : Divide total volume by the infusion time to get the hourly rate.

Correct Answers:

Rationale :

Use the IV rate formula: Total Volumeml/infusion time Substituting values: 1000/8=125 mL/hr

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3 : A nurse is preparing to administer morphine sulfate 2 mg IV bolus. Available is morphine sulfate 10 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies.Do not use trailing zero.)

Hint : Use a small syringe for precise measurement when administering IV bolus medications.

Correct Answers:

Rationale :

Use the formula: Ordered Dose/Available Dose×Volume Substituting values: 2/10=0.2mL

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4 : A nurse is preparing to administer digoxin 8 mcg/kg/day PO to divide equally every 12 hr for a preschooler who weighs 33 lb. Available is digoxin elixir 0.05 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do use a trailing zero.)

Hint : Convert micrograms to milligrams before calculating the volume.

Correct Answers:

Rationale :

Convert weight to kg: 33÷2.2=15 kg Calculate total daily dose: 8×15=120 mcg Divide by two doses per day: 120÷2=60 mcg per dose 120÷2=60 mcg per dose Convert mcg to mg: 60 mcg=0.06 mg Convert to mL: 0.06/0.05=1.2mL

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5 : A nurse is preparing to infuse a 250-mL unit of packed RBCs over 2 hr. The drop factor of the manual IV tubing is 15 gtts/mL. The nurse should adjust the flow rate to deliver how many drops per minute? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Hint : Ensure the correct drop factor for blood product administration.

Correct Answers:

Rationale :

Convert hours to minutes ;2×60=120 minutes Calculate drops per minute: 120/250×15=31 gtt/min

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6 : A nurse is preparing to administer amoxicillin 2 gm/day PO divided into two doses. The amount available is amoxicillin 250 mg tablets. How many tablets should the nurse administer with each dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Hint : Always check the maximum daily dose for safety.

Correct Answers:

Rationale :

Convert grams to milligrams: 2 g=2000 mg Divide total daily dose into two doses: 2000÷2=1000 mg per dose Convert to tablets: 250/1000=4 tablets per dose

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7 : A nurse is preparing to administer midazolam 0.2 mg/kg via IV bolus now. The client weighs 220 lb. How many mg should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Hint : Administer sedatives like midazolam carefully, monitoring respiratory status.

Correct Answers:

Rationale :

Convert weight to kg: 220÷2.2=100 kg Calculate dose: 0.2×100=20 mg

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8 : A nurse is preparing to administer midazolam 0.2 mg/kg via IV bolus now. The client weighs 220 lb. How many mg should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Hint : Use the correct drop factor based on the tubing type (macrodrip or microdrip).

Correct Answers:

Rationale :

Convert hours to minutes: 3×60=180 minutes Calculate drops per minute: 400×20/180=44 gtt/min

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9 : A nurse is preparing to administer lactated Ringer's 400 mL IV bolus to infuse over 3 hr. The drop factor of the manual IV tubing is 20 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero)

Hint : Convert hours to minutes before calculating the drip rate.

Correct Answers:

Rationale :

Use the IV drop rate formula: 150×20/60=50 gtt/min

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10 : A nurse is caring for client who is postoperative following an appendectomy and prescribed Ds lactated Ringer's at 150 mL/hr continuous IV infusion for 12 hr. The drop factor of the manual IV tubing is 20 gWmL. The nurse should set the manual IV infusion to deliver how many gtt/min? (Round the answer to the nearest whole number Use a leading zero if it applies. Do not use a trailing zero.)

Hint : Always monitor for signs of digoxin toxicity before administration.

Correct Answers:

Rationale :

Use the formula: 0.25/0.125=2 tablets

Distractor Analysis :

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