A nurse is caring for a client who is postpartum and is experiencing nausea. The nurse plans to administer promethazine 12.5mg PO. Available is promethazine 25mg tablets. How many tablets should the nurse plan to administer? Round the answer to the nearest tenth. Use a leading zero. Do not use a trailing zero.
The Correct Answer is ["0.5"]
Given:
Prescribed dose: 12.5 mg of promethazine
Available tablets: 25 mg tablets
Steps to solve:
Determine the number of tablets per dose:
Find how many 25 mg tablets are needed to make 12.5 mg of promethazine.
Set up a proportion to solve for the unknown number of tablets (X):
25 mg/tablet = 12.5 mg/X tablets
Cross-multiplying gives us:
25 mg x X tablets = 12.5 mg x 1 tablet
Simplifying:
25X = 12.5
Solving for X:
X = 12.5 / 25 = 0.5 tablets
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["188"]
Explanation
Given:
Total volume: 1500 mL
Time: 8 hours
Steps to solve:
Determine the flow rate:
Set up a proportion to solve for the unknown flow rate (X):
1500 mL/8 hr = X mL/1 hr
Cross-multiplying gives us:
1500 mL x 1 hr = 8 hr x X mL
Simplifying:
1500 = 8X
Solving for X:
X = 1500 / 8 = 187.5 mL/hr
Round to the nearest whole number:
188 mL/hr.
Correct Answer is ["5"]
Explanation
Set up a proportion:
You have 50 mg of ibuprofen in 25 mL of suspension.
You need to administer 10 mg of ibuprofen.
Let 'x' represent the unknown volume in mL.
The proportion is: 50 mg / 25 mL = 10 mg / x mL
2. Solve for x:
Cross-multiply: 50 x x = 25 x 10
Simplify: 50x = 250
Divide both sides by 50: x = 250 / 50
Calculate: x = 5 mL
3. Round to the nearest hundredth:
5mL
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