Pediatric Appendicitis Score

Pediatric Appendicitis Score: calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.

ℹ Reference calculation based on the published method. It does not replace a clinical examination or a doctor's decision.

Pediatric Appendicitis Score

RLQ pain with cough, percussion or hopping (1 = yes)

Right iliac fossa tenderness (1 = yes)

Anorexia (1 = yes)

Body temperature°C

Nausea or vomiting (1 = yes)

White blood cells×10⁹/L

Absolute neutrophil count×10⁹/L

Pain migration to the right iliac fossa (1 = yes)

Pediatric Appendicitis Score

0points

Validated for children aged 4–18 yearsPediatric Appendicitis Score: calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.

Appendicitis risk

Low

What it shows

Health, fitness and clinical calculators with standard formulas — body composition, calories, blood pressure, lipid panels, cardiac scores (CHA₂DS₂-VASc, HEART, TIMI), kidney/liver function (MELD, Child-Pugh), pregnancy and more.

Formula & example

The calculator computes Pediatric Appendicitis Score (points) from parameters:

RLQ pain with cough, percussion or hopping (1 = yes)
Right iliac fossa tenderness (1 = yes)
Anorexia (1 = yes)
Body temperature (°C)
Nausea or vomiting (1 = yes)
White blood cells (×10⁹/L)
Absolute neutrophil count (×10⁹/L)
Pain migration to the right iliac fossa (1 = yes)

Example 1

RLQ pain with cough, percussion or hopping (1 = yes) = 0, Right iliac fossa tenderness (1 = yes) = 0, Anorexia (1 = yes) = 0, Body temperature = 37.2 °C, Nausea or vomiting (1 = yes) = 0, White blood cells = 9 ×10⁹/L, Absolute neutrophil count = 5 ×10⁹/L, Pain migration to the right iliac fossa (1 = yes) = 0

→ Pediatric Appendicitis Score: 0 points

Example 2 (×1.5)

RLQ pain with cough, percussion or hopping (1 = yes) = 0, Right iliac fossa tenderness (1 = yes) = 0, Anorexia (1 = yes) = 0, Body temperature = 55.8 °C, Nausea or vomiting (1 = yes) = 0, White blood cells = 13.5 ×10⁹/L, Absolute neutrophil count = 7.5 ×10⁹/L, Pain migration to the right iliac fossa (1 = yes) = 0

→ Pediatric Appendicitis Score: 2 points

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FAQ

How is BMI calculated?

BMI = weight (kg) / height (m)². Example: 70 kg / (1.75 m)² = 22.9. The WHO normal range is 18.5–24.9; below that is underweight, 25–29.9 is overweight, and 30+ is obese.

Is BMI accurate for everyone?

No. BMI does not distinguish muscle from fat, so athletes may show a high BMI with low body fat. It is also less reliable for teenagers, pregnant people, older adults, and very tall or short individuals.

What are the BMI categories?

Underweight: below 18.5. Normal: 18.5–24.9. Overweight: 25–29.9. Obese class I: 30–34.9; class II: 35–39.9; class III: 40+.

What is a better measure than BMI?

Body fat percentage, waist-to-height ratio (aim for under 0.5), and waist circumference give a clearer picture of health than BMI alone.

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Pediatric Appendicitis Score