The physician ordered 2/3 strength Ensure 6 oz PO q4h for 24 hrs. What is the total volume in mL you would administer in 24 hrs?
60 mL
120 mL
180 mL
1080 mL
The Correct Answer is D
Convert ounces to millilitres (1 oz = 29.5735 mL):
6 oz×29.5735 mL/oz=177.441 mL6
Calculate the frequency of doses per day:
The patient receives a dose every 4 hours, so in 24 hours, the number of doses is:
24 hours/4 hours/dose=6 doses
Calculate the total volume for all doses:
177.441 mL/dose×6 doses=1064.646 mL
Rounding to the nearest whole number=1080 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Convert the dosage to mcg per hour:
55 mcg/min × 60 min = 3300 mcg/hr
Determine the concentration of nitroglycerin available:
The concentration is 25 mg per 250 mL, which converts to 100 mcg/mL.
Calculate the flow rate in mL per hour using the dosage and concentration:
Flowrate(mL/hr)=(Dose(mcg/hr)/Concentration(mcg/mL))
(3300mcg/hr100mcg/mL)=33mL/hr
Correct Answer is A
Explanation
Convert the dosage to mcg per hour:
15mcg/min×60min/hr=900mcg/hr15
Convert the available nitroglycerin concentration to mcg/mL:
25mg=25,000mcg
Theconcentrationis(25,000mcg/250mL)=100mcg
Calculate the flow rate in mL per hour using the dosage and concentration:
Flowrate(mL/hr)=(900mcg/hr100mcg/mL)=9mL/hr
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