What does the voiding diary measure?

3-day bladder diary: time and volume of each void, urgency episodes, incontinence episodes, fluid intake. Provides: daytime frequency, nocturia, 24h output, functional capacity (largest void), and nocturnal polyuria index.

What is nocturnal polyuria?

Nocturnal polyuria: urine produced at night >33% of 24h urine production in adults >65 years (>20% in younger adults). Distinguished from global polyuria by day/night urine distribution.

What functional bladder capacity is normal?

Normal functional bladder capacity 300-400 mL. Reduced capacity 600 mL with poor flow may indicate detrusor underactivity or BOO.

Voiding Diary 24-Hour Frequency Episodes

Analyze 24-hour voiding diary: frequency (normal <=8/day), nocturia (normal <=1/night), functional bladder capacity, and voided volume variation for LUTS assessment.

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Voiding Diary 24-Hour Frequency Episodes

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Frequently Asked Questions

What does the voiding diary measure?

What is nocturnal polyuria?

What functional bladder capacity is normal?