A Nitroglycerin drip is infusing at 3 mL/hr. the available solution is 50 mg of Nitroglycerin in 250 mL D5W. Calculate the following: mcg/hr
600 mcg/hr
500 mcg/hr
700 mcg/hr
550 mcg/hr
The Correct Answer is A
Given:
Infusion rate: 3 mL/hr
Concentration of Nitroglycerin: 50 mg in 250 mL D5W (200 mcg/mL)
Step 1: Calculate the dose in mg/hr:
Dose (mg/hr) = Infusion rate (mL/hr) x Concentration (mg/mL)
Dose (mg/hr) = 3 mL/hr x 200 mcg/mL
Dose (mg/hr) = 600 mcg/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Convert ounces to millilitres (1 oz = 29.5735 mL):
6oz×29.5735mL/oz=177.441mL6
Calculate the frequency of doses per day:
The patient receives a dose every 4 hours, so in 24 hours, the number of doses is:
24hours/4hours/dose=6doses
Calculate the total volume for all doses:
177.441mL/dose×6doses=1064.646mL
Rounding to the nearest whole number=1080 mL
Correct Answer is C
Explanation
Convert ounces to milliliters (1 oz = 29.5735 mL):
8 oz coffee: 8 × 29.5735 = 236.588 mL
3 oz juice: 3 × 29.5735 = 88.7205 mL
12 oz soda: 12 × 29.5735 = 354.882 mL
Calculate the water intake from the water pitcher:
Total water intake: 800 mL (initial) - 200 mL (remaining) = 600 mL
Calculate the IV fluid intake:
IV fluids at 40 mL/hr for 8 hours: 40 × 8 = 320 mL
Add all the fluid amounts:
Totalfluidintake=236.588mL+88.7205mL+354.882mL+600mL+320mL=1600.1905mL
Rounding to the nearest whole number: 1600 mL.
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