The patient drinks 18 ounces of fluid at lunchtime. How many milliliters of intake will the nurse document?
A) 1.7 mL
B) 0.6 mL
C) 540 mL
D) 54 mL
Ans: C) 540 mL
Feedback: 1 ounce = 30 mL. Using the ratio-and-proportion method: 1 oz/30 mL = 18 oz/X. Cross-multiply to determine the patient drank 540 mL of fluid.
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