A nurse is preparing to infuse 1400 units/hr of heparin sodium for a client with pulmonary embolism (PE). The amount available is 25,000 units in a 250 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 ["14"]
Given:
Total units of heparin: 25,000 units
Total volume: 250 mL
Desired infusion rate: 1400 units/hr
Steps to solve:
Determine the infusion time:
If the nurse is infusing 1400 units/hr and has 25,000 units total, the infusion time will be:
25,000 units / 1400 units/hr = 17.86 hours (approximately 18 hours)
Calculate the flow rate in mL/hr:
Total volume of 250 mL needs to be infused over 18 hours.
The flow rate is:
250 mL / 18 hr = 13.89 mL/hr
Round to the nearest whole number:
14 mL/hr.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2"]
Explanation
We are given a sliding scale for insulin aspart dosing based on the client's blood glucose level.
The client's current blood glucose level is 151 mg/dL.
Consulting the Sliding Scale:
The sliding scale provides a range of blood glucose levels and corresponding insulin doses.
We need to find the range that includes the client's blood glucose level of 151.
Applying the Sliding Scale:
Looking at the sliding scale, we can see that the range of 150-199 mg/dL corresponds to a dose of 2 units of insulin aspart.
Correct Answer is ["0.5"]
Explanation
Given:
Prescribed dose: 25 mg of atenolol per dose
Available tablets: 50 mg tablets
Steps to solve:
Determine the number of tablets per dose:
Find how many 50 mg tablets are needed to make 25 mg of atenolol.
Set up a proportion to solve for the unknown number of tablets (X):
50 mg/tablet = 25 mg/X tablets
Cross-multiplying gives us:
50 mg x X tablets = 25 mg x 1 tablet
Simplifying:
50X = 25
Solving for X:
X = 25 / 50 = 0.5 tablets
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