1. What is the Paediatric Bladder Volume Formula?

The paediatric bladder volume formula estimates bladder capacity in children based on their age. It's commonly used by surgeons and urologists to assess normal bladder development and diagnose potential abnormalities.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( Age \) — Child's age in years (0-18 years)
• 30 — Multiplier constant (mL per year of adjusted age)

Explanation: The formula accounts for the linear increase in bladder capacity with age during childhood.

3. Importance of Bladder Volume Calculation

Details: Accurate bladder volume estimation helps in diagnosing conditions like bladder dysfunction, urinary retention, and neurogenic bladder. It's also useful for planning surgical procedures.

4. Using the Calculator

Tips: Enter the child's age in years (must be between 0-18). The calculator will estimate the expected bladder volume in milliliters.

5. Frequently Asked Questions (FAQ)

Q1: Is this formula valid for all children?
A: While generally accurate for most children, individual variations exist based on body size and other factors.

Q2: What are normal bladder volumes by age?
A: Newborns typically have 10-30 mL capacity, increasing to adult volumes (400-600 mL) by adolescence.

Q3: When should bladder volume be measured?
A: When evaluating urinary frequency, incontinence, or before urological procedures.

Q4: Are there alternative calculation methods?
A: Some use weight-based formulas or ultrasound measurements for more precise estimates.

Q5: How accurate is this formula?
A: It provides a reasonable estimate for clinical purposes but may vary ±20% in individual cases.