A nurse is preparing to administer ferrous sulfate 120 mg PO. Available is ferrous sulfate syrup 90 mg/5 mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["6.7"]
Given:
Prescribed dose: 120 mg of ferrous sulfate
Available concentration: 90 mg/5 mL
Steps to solve:
Determine the volume to be administered:
Set up a proportion to solve for the unknown volume (X):
90 mg/5 mL = 120 mg/X mL
Cross-multiplying gives us:
90 mg x X mL = 120 mg x 5 mL
Simplifying:
90X = 600
Solving for X:
X = 600 / 90 = 6.67 mL
Round to the nearest tenth: 6.7 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2"]
Explanation
Given:
Prescribed dose: 10 mg of oxycodone per dose
Available tablets: 5 mg tablets
Steps to solve:
Determine the number of tablets per dose:
Find how many 5 mg tablets are needed to make 10 mg of oxycodone.
Set up a proportion to solve for the unknown number of tablets (X):
5 mg/tablet = 10 mg/X tablets
Cross-multiplying gives us:
5 mg x X tablets = 10 mg x 1 tablet
Simplifying:
5X = 10
Solving for X:
X = 10 / 5 = 2 tablets
Correct Answer is ["2"]
Explanation
Given:
Prescribed dose: 100 mcg of fentanyl
Available concentration: 0.05 mg/mL
Steps to solve:
Convert mcg to mg:
1 mg = 1000 mcg
So, 100 mcg = 0.1 mg
Determine the volume to be administered:
Set up a proportion to solve for the unknown volume (X):
0.05 mg/mL = 0.1 mg/X mL
Cross-multiplying gives us:
0.05 mg x X mL = 0.1 mg x 1 mL
Simplifying:
0.05X = 0.1
Solving for X:
X = 0.1 / 0.05 = 2 mL
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