A patient needs 220 mL of oral fluid. The measuring cup is marked in 10 mL divisions. Which level should the nurse measure?
Correct answer: D. 220 mL
- A. 20 mL
- B. 22 mL
- C. 200 mL
- D. 220 mL
Explanation
The prescribed amount is 220 mL, so the nurse measures to the 220 mL mark. The 22 mL option results from confusing millilitres with the number of 10 mL divisions. Accurate measurement requires reading the cup scale directly.
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About Drug Calculations and Dosage
Drug calculations apply measurement systems, unit conversions, dosage formulas, tablet and liquid doses, percentage and ratio strength, and weight based dosing. Work also includes calculating IV flow rates, infusion times and doses for children, while distinguishing the prescribed dose from the available concentration.
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