A nurse is preparing to infuse 4 units/hr of regular insulin for a client with diabetic ketoacidosis (DKA). The amount available is 50 units in a 100 mL bag of 0.9 sodium chloride. How will the nurse set up the flow rate (mL/hr)? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["8"]
Given:
Total units of insulin: 50 units
Total volume: 100 mL
Desired infusion rate: 4 units/hr
Determine the infusion time:
If the nurse is infusing 4 units/hr and has 50 units total, the infusion time will be:
50 units / 4 units/hr = 12.5 hours
Calculate the flow rate in mL/hr:
Total volume of 100 mL needs to be infused over 12.5 hours.
The flow rate is:
100 mL / 12.5 hr = 8 mL/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.5"]
Explanation
Given:
Prescribed dose: 7.5 mg of buspirone per dose
Available tablets: 15 mg tablets
Steps to solve:
Determine the number of tablets per dose:
Find how many 15 mg tablets are needed to make 7.5 mg of buspirone.
Set up a proportion to solve for the unknown number of tablets (X):
15 mg/tablet = 7.5 mg/X tablets
Cross-multiplying gives us:
15 mg x X tablets = 7.5 mg x 1 tablet
Simplifying:
15X = 7.5
Solving for X:
X = 7.5 / 15 = 0.5 tablets
Correct Answer is ["2"]
Explanation
Given:
Total daily dose: 2 grams of amoxicillin per day
Number of doses per day: 2 doses
Available tablets: 500 mg tablets
Steps to solve:
Determine the dose per administration:
Each dose will be: 2 g/day ÷ 2 doses/day = 1 g/dose
Convert grams to milligrams:
1 gram = 1000 milligrams
1 g/dose = 1000 mg/dose
Determine the number of tablets per dose:
Find how many 500 mg tablets are needed to make 1000 mg of amoxicillin.
Set up a proportion to solve for the unknown number of tablets (X):
500 mg/tablet = 1000 mg/X tablets
Cross-multiplying gives us:
500 mg x X tablets = 1000 mg x 1 tablet
Simplifying:
500X = 1000
Solving for X:
X = 1000 / 500 = 2 tablets
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