A client drank 7 1/2 oz of orange juice, 6 oz of tea and 8 oz of milk. The calculated intake will be:

Appeared in: BCCL kharkhanda Staff Nurse - 2015

Explanation

The fundamental step is to convert the fluid volumes from ounces (oz) to milliliters (ml) using the standard medical conversion factor: 1 oz = 30 ml.
Calculate the volume for each beverage consumed: Orange juice (7.5 oz × 30 ml/oz = 225 ml), Tea (6 oz × 30 ml/oz = 180 ml), and Milk (8 oz × 30 ml/oz = 240 ml).
The total fluid intake is the sum of the individual volumes: 225 ml + 180 ml + 240 ml = 645 ml.

Option A: This value is incorrect and likely stems from a significant miscalculation, possibly by using an incorrect conversion factor or making multiple arithmetic errors.
Option B: This incorrect total could result from an arithmetic error, such as incorrectly calculating one of the fluid volumes or making a mistake during addition.
Option C: This value is close to the correct answer and likely represents a minor addition error, for instance, transposing numbers during the summation (e.g., 225 + 180 + 220 = 625).

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Fluid intake calculation and conversion from ounces to milliliters as background academic context rather than a clinical decision trigger.
Accurate documentation of fluid intake and output (I&O) is a critical nursing skill essential for monitoring a patient's hydration and fluid balance status (SRC_12261).
Errors in I&O charting can lead to incorrect clinical assessments and interventions for conditions like dehydration, fluid overload, acute kidney injury, and heart failure (SRC_12262).
What if? If the patient was on a strict fluid restriction of 1.5 liters per day, this intake of 645 ml would represent over 40% of their total daily allowance, requiring careful planning for the remaining meals and fluids.

How to Approach the Question

First, identify that the question requires a mathematical calculation involving unit conversion.
Recall the standard conversion factor for fluid ounces to milliliters used in nursing: 1 oz = 30 ml.
Convert the mixed fraction for orange juice (7 1/2 oz) into a decimal (7.5 oz) for easier calculation.
Calculate the milliliter equivalent for each fluid item separately: (7.5 × 30), (6 × 30), and (8 × 30).
Sum the results of the individual calculations to find the total fluid intake in ml.
Finally, match your calculated total with the provided multiple-choice options.

Concept Tested & Keywords

Concept Tested: Fluid intake calculation and conversion from ounces to milliliters.
Stem keywords: client, drank, orange juice, tea, milk, intake
Lead-in keywords: calculated intake

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