Atlanta Classification

Atlanta Classification: 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.

Atlanta Classification

Organ failure (0 = none, 1 = ≤48 h, 2 = >48 h)
Local or systemic complications (1 = yes)
Pancreatitis severity grade
1
Organ failure: ≥2 points on the modified Marshall scoreComplications: necrosis, fluid collections, exacerbation of comorbid diseaseAtlanta Classification: calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.
Severity
Mild

More about: Atlanta Classification

What it calculates

The “Atlanta Classification” calculator computes Pancreatitis severity grade from 2 parameters: organ failure (0 = none, 1 = ≤48 h, 2 = >48 h), local or systemic complications (1 = yes).

Used by professionals and patients to assess health metrics, dosages, and risks.

Example calculation

With parameters Organ failure (0 = none, 1 = ≤48 h, 2 = >48 h) = 0, Local or systemic complications (1 = yes) = 0 the result is 1 (Organ failure: ≥2 points on the modified Marshall score).

How to use

  1. Enter organ failure (0 = none, 1 = ≤48 h, 2 = >48 h) and local or systemic complications (1 = yes) — each field above is adjustable with a slider.
  2. Pancreatitis severity grade is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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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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