What measurement accuracy is required when recording urine output on the I&O form?

What measurement accuracy is required when recording urine output on the I&O form?

• A. Exactly equal to the nurse's measurement
• B. Within +/- 10 mL
• C. Within +/- 50 mL
• D. Within +/- 200 mL

Answer: (C)

Urine output on the I&O form should be recorded within a practical allowance of plus or minus 50 mL of what you actually measured. This recognizes that measurement tools have fixed markings and you may round to the nearest 50 mL or 10–50 mL, plus small timing differences between voids. Demanding an exact match isn’t realistic in everyday nursing practice, while a tolerance as wide as 200 mL could obscure important changes in a patient’s fluid status. So within ±50 mL is the appropriate standard to balance accuracy with practicality. When you measure, read at eye level, use the correct container, and record promptly to keep data reliable.

Urine output on the I&O form should be recorded within a practical allowance of plus or minus 50 mL of what you actually measured. This recognizes that measurement tools have fixed markings and you may round to the nearest 50 mL or 10–50 mL, plus small timing differences between voids. Demanding an exact match isn’t realistic in everyday nursing practice, while a tolerance as wide as 200 mL could obscure important changes in a patient’s fluid status. So within ±50 mL is the appropriate standard to balance accuracy with practicality. When you measure, read at eye level, use the correct container, and record promptly to keep data reliable.