A patient is consuming a clear diet, and a healthcare professional is reviewing the daily intake and output (I&O). The urinary drainage bag records a total of 1,000 mL for the past 24 hours. The total intake is:

To calculate the total fluid intake, you must convert the various fluid types consumed into milliliters. The patient had 2 cups of coffee (2 x 8 oz = 16 oz), 1 clear soup (16 oz), and 1 pint of water (16 oz). Converting these values to milliliters: 16 oz coffee + 16 oz soup + 16 oz water = 48 oz = 1419.53 mL. Subtracting the total output of 1000 mL from the total intake of 1419.53 mL gives a fluid intake of 419.53 mL. Rounding to the nearest whole number, the total intake is 420 mL, corresponding to option C.