Video Library
Ati Nurs 346 Dosage Calculation Coker U Bsn Proctored Exam
Total Questions : 23
Showing 10 questions, Sign in for moreHow many drops per minute should a nurse administer for a 1,000 mL IV of 0.9
Explanation
Step 1 is to convert the total infusion time from hours into minutes by multiplying 12 hours by 60 minutes, which equals 720 minutes.
Step 2 is to divide the total volume of 1,000 mL by the total time of 720 minutes, then multiply by the drop factor of 20 drops per milliliter, which is written as (1000 mL ÷ 720 min) × 20 gtt/mL.
Step 3 is to calculate the final value which equals 27.77 drops per minute, and when rounded to the nearest whole number, the final calculated answer is 28 gtt/min.
A nurse is preparing to administer the initial dose of Ampicillin 1 gram IVPB for a GBS-positive laboring client.
The Ampicillin is reconstituted to a concentration of 125 mg/mL. How many milliliters will the nurse administer for the initial dose?
Explanation
Step 1 is to convert the ordered dose of Ampicillin from 1 gram into milligrams by multiplying 1 gram by 1,000, which equals 1,000 mg.
Step 2 is to divide the desired dose of 1,000 mg by the available concentration of 125 mg, then multiply by the volume of 1 mL, which is written as (1000 mg ÷ 125 mg) × 1 mL.
Step 3 is to calculate the final volume to administer, which equals 8, so the final calculated answer is 8 mL.
A 4-month-old infant weighs 14 lbs and has a fever.
The physician orders Acetaminophen (Tylenol) 15 mg/kg orally every 6 hours as needed.
The available concentration of infant Tylenol is 160 mg/5 mL. How many milliliters (mL) will the nurse administer per dose? Round to the nearest whole number.
Explanation
Step 1 is to convert the infant weight from pounds to kilograms by dividing 14 lbs by 2.2, which equals 6.3636 kg.
Step 2 is to calculate the required dosage in milligrams by multiplying the weight of 6.3636 kg by the ordered 15 mg/kg, which equals 95.454 mg.
Step 3 is to divide the desired dose of 95.454 mg by the available 160 mg and multiply by the volume of 5 mL, which is written as (95.454 mg ÷ 160 mg) × 5 mL.
Step 4 is to calculate the volume which equals 2.98 mL, and when rounded to the nearest whole number, the final calculated answer is 3 mL.
A nurse is preparing to administer Terbutaline (Brethine) 0.5 mg subcutaneously.
The available medication is Terbutaline 1 mg/mL. How many milliliters (mL) will the nurse administer?
Explanation
Step 1 is to divide the desired dose of Terbutaline of 0.5 mg by the available concentration of 1 mg, then multiply by the volume of 1 mL, which is written as (0.5 mg ÷ 1 mg) × 1 mL.
Step 2 is to calculate the final volume to administer, which equals 0.5, so the final calculated answer is 0.5 mL.
A nurse is preparing to administer Famotidine 20 mg in D5W 100 mL over 30 minutes.
What should the nurse set the IV pump to deliver in mL/hr? Round to the nearest whole number.
Explanation
Step 1 is to convert the infusion time from 30 minutes into hours by dividing 30 minutes by 60 minutes, which equals 0.5 hours.
Step 2 is to divide the total volume of 100 mL by the time of 0.5 hours to determine the hourly rate, which is written as 100 mL ÷ 0.5 hr.
Step 3 is to calculate the final infusion rate which equals 200, so the final calculated answer is 200 mL/hr.
A nurse is preparing to administer D5W 500 mL IV to infuse over 6 hours.
Given that the drop factor of the manual IV tubing is 15 gtt/mL, how many gtt/min should the nurse set the infusion to deliver? Round to the nearest whole number.
Explanation
Step 1 is to convert the total infusion time from hours into minutes by multiplying 6 hours by 60 minutes, which equals 360 minutes.
Step 2 is to divide the total volume of 500 mL by the total time of 360 minutes, then multiply by the drop factor of 15 drops per milliliter, which is written as (500 mL ÷ 360 min) × 15 gtt/mL.
Step 3 is to calculate the final value which equals 20.83 drops per minute, and when rounded to the nearest whole number, the final calculated answer is 21 gtt/min.
How many kilograms does a newborn weigh if the weight is listed as 8 lbs 8 oz? Round to the nearest tenth.
A neonate weighing 4.2 kg is ordered Gentamicin 3 mg/kg IV every 12 hours.
The available concentration of Gentamicin is 15 mg/mL. How many milliliters (mL) will the nurse administer per dose? Round to the nearest hundredth.
Explanation
Step 1 is to calculate the total required dose of Gentamicin in milligrams by multiplying the neonatal weight of 4.2 kg by the prescribed 3 mg/kg, which equals 12.6 mg.
Step 2 is to divide the desired dose of 12.6 mg by the available concentration of 15 mg, then multiply by the volume of 1 mL, which is written as (12.6 mg ÷ 15 mg) × 1 mL.
Step 3 is to calculate the final volume to administer, which equals 0.84, so the final calculated answer is 0.84 mL.
A provider prescribes Gentamicin 1 mg/kg IV every 8 hours for a client who weighs 168 lbs.
Available is Gentamicin 40 mg/mL. How many mL should the nurse administer per dose? Round to the nearest tenth.
Explanation
Step 1 is to convert the client weight from pounds to kilograms by dividing 168 lbs by the standard conversion factor of 2.2, which equals 76.3636 kg.
Step 2 is to calculate the total required dose in milligrams by multiplying the weight of 76.3636 kg by the prescribed 1 mg/kg, which equals 76.3636 mg.
Step 3 is to divide the desired dose of 76.3636 mg by the available concentration of 40 mg, then multiply by the volume of 1 mL, which is written as (76.3636 mg ÷ 40 mg) × 1 mL.
Step 4 is to calculate the volume which equals 1.909 mL, and when rounded to the nearest tenth, the final calculated answer is 1.9 mL..
If a nurse needs to administer Gentamicin 1 mg/kg every 8 hours to a client weighing 168 lbs, what is the total daily dose in milligrams?
Sign Up or Login to view all the 23 Questions on this Exam
Join over 100,000+ nursing students using Naxlex’s science-backend flashcards, practice tests and expert solutions to improve their grades and reach their goals.
Sign Up Now
