Ati rn dosage calculation med surg Proctored exam
Total Questions : 35
Showing 10 questions, Sign in for moreA nurse is preparing to administer amoxicillin 775 mg PO. Available is amoxicillin oral suspension 400 mg/5 mL. How many mL 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.)
Explanation
Calculation:
- Identify the ordered dose and available concentration
Ordered Dose: 775 mg
Available Concentration: 400 mg/5 mL
- Calculate the volume to administer
Volume to administer = (Ordered Dose ÷ Concentration) × Volume of Concentration
Volume to administer = (775 ÷ 400) × 5
Volume to administer = 1.9375 × 5
Volume to administer ≈ 9.6875 mL
- Round to the nearest whole number
= 10 mL
A nurse is preparing to administer clindamycin 1,200 mg IV bolus over 1 hr to a client who is allergic to penicillin. Available is clindamycin 1,200 mg in dextrose 5% in water 100 mL. The drop factor on the manual IV tubing is 15 gtt/mL. The nurse should set the flow rate 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.)
Explanation
Calculation:
- Identify total volume, infusion time, and drop factor
Total Volume: 100 mL
Time: 1 hour = 60 minutes
Drop Factor: 15 gtt/mL
- Calculate the flow rate
Flow Rate (gtt/min) = (Total Volume × Drop Factor) ÷ Time
Flow Rate = (100 × 15) ÷ 60
Flow Rate = 1,500 ÷ 60
= 25 gtt/min
A nurse is preparing to administer cefazolin 1 g intermittent IV bolus in 0.9% sodium chloride 250 mL over 30 min. The drop factor on the manual IV tubing is 10 gtt/mL. The nurse should set the manual IV flow rate 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.)
Explanation
Calculation:
- Identify total volume, infusion time, and drop factor
Total Volume: 250 mL
Time: 30 minutes
Drop Factor: 10 gtt/mL
- Calculate the flow rate
Flow Rate (gtt/min) = (Total Volume × Drop Factor) ÷ Time
Flow Rate = (250 × 10) ÷ 30
Flow Rate = 2,500 ÷ 30
Flow Rate ≈ 83.33
- Round to the nearest whole number
= 83 gtt/min
A nurse is preparing to administer penicillin G potassium 1,000,000 units intermittent IV bolus. The label on the vial indicates to reconstitute with 50 mL of sterile water to make penicillin G potassium 100,000 units/mL. How many mL 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.)
Explanation
Calculation:
- Identify the ordered dose and reconstituted concentration
Ordered Dose: 1,000,000 units
Reconstituted Concentration: 100,000 units/mL
- Calculate the volume to administer
Volume to administer = Ordered Dose ÷ Concentration
Volume to administer = 1,000,000 ÷ 100,000
= 10 mL
A nurse is preparing to administer 0.45% sodium chloride 2.5 L IV to infuse over 24 hr. How many mL 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.)
Explanation
Calculation:
- Identify the ordered volume
Ordered Volume: 2.5 L
- Convert liters to milliliters
1L = 1, 000 mL
2.5 L × 1,000 = 2,500 mL
= 2,500 mL
A nurse is reviewing medications prescribed for a client. For which of the following prescriptions should the nurse contact the provider for clarification?
A nurse is preparing to administer prednisone 15 mg PO to a client who has rheumatoid arthritis. Available is prednisone 10 mg tablets. How many tablets should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Answer: 1.5 tablets
Calculation:
- Identify the ordered dose and tablet strength
Ordered Dose: 15 mg
Tablet Strength: 10 mg per tablet
- Calculate the number of tablets to administer
Number of Tablets = Ordered Dose ÷ Tablet Strength
Number of Tablets = 15 ÷ 10
= 1.5
A nurse is preparing to administer epoetin alfa 7,000 units subcutaneous once a week to a client. Available is epoetin alfa 20,000 units/mL. How many mL should the nurse administer? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Calculation:
- Identify the ordered dose and available concentration
Ordered Dose: 7,000 units
Available Concentration: 20,000 units/mL
- Calculate the volume to administer
Volume to administer = Ordered Dose ÷ Concentration
Volume to administer = 7,000 ÷ 20,000
= 0.35 mL
A nurse is preparing to administer lactated Ringer's IV to infuse at 60 mL/hr. The drop factor on the manual IV tubing is 60 gtt/mL. The nurse should set the IV flow rate 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.)
Explanation
Calculation:
- Identify the infusion rate and drop factor
Infusion Rate: 60 mL/hr
Drop Factor: 60 gtt/mL
- Convert infusion rate to minutes
Time: 1 hour = 60 minutes
- Calculate the flow rate
Flow Rate (gtt/min) = (Infusion Rate × Drop Factor) ÷ Time
Flow Rate = (60 × 60) ÷ 60
Flow Rate = 3,600 ÷ 60
= 60 gtt/min
A nurse is preparing to administer ceftriaxone 250 mg IM to an adult client who has a gonococcal infection. The label on the vial indicates to reconstitute each vial with sterile water 2.1 mL to yield ceftriaxone 350 mg/mL. How many mL of the reconstituted medication should the nurse administer? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Calculation:
- Identify the ordered dose and reconstituted concentration
Ordered Dose: 250 mg
Reconstituted Concentration: 350 mg/mL
- Calculate the volume to administer
Volume to administer = Ordered Dose ÷ Concentration
Volume to administer = 250 ÷ 350
Volume to administer ≈ 0.714 mL
- Round to the nearest hundredth
= 0.71 mL
Sign Up or Login to view all the 35 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
