What is the acceptable margin of error for recording intake and output measurements?

What is the acceptable margin of error for recording intake and output measurements?

• A. +/- 50 mL
• B. +/- 25 mL
• C. +/- 75 mL
• D. +/- 100 mL

Answer: (B)

In recording intake and output, accuracy matters because tiny errors can add up and mislead a clinician about a patient’s fluid balance. The standard margin of error you should aim for is plus or minus 25 mL per measurement. This tolerance accounts for slight estimation differences when pouring, reading a mark, or rounding, while still being precise enough to reflect meaningful changes over time. Larger margins, like 50, 75, or 100 mL, could hide real shifts in hydration or overload, making it harder to respond appropriately. Use a proper measuring tool, read at eye level, and record promptly to maintain that 25 mL accuracy.

In recording intake and output, accuracy matters because tiny errors can add up and mislead a clinician about a patient’s fluid balance. The standard margin of error you should aim for is plus or minus 25 mL per measurement. This tolerance accounts for slight estimation differences when pouring, reading a mark, or rounding, while still being precise enough to reflect meaningful changes over time. Larger margins, like 50, 75, or 100 mL, could hide real shifts in hydration or overload, making it harder to respond appropriately. Use a proper measuring tool, read at eye level, and record promptly to maintain that 25 mL accuracy.