Sepsis-3 Definition

Sepsis-3 Definition: 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.

Sepsis-3 Definition

Suspected or documented infection (1 = yes)

Baseline SOFApoints

Current SOFApoints

Vasopressors required to keep MAP ≥65 mmHg (1 = yes)

Lactatemmol/L

SOFA increase

2points

If baseline SOFA is unknown, assume 0Sepsis-3 Definition: calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.

Conclusion

Sepsis

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 SOFA increase (points) from parameters:

Suspected or documented infection (1 = yes)
Baseline SOFA (points)
Current SOFA (points)
Vasopressors required to keep MAP ≥65 mmHg (1 = yes)
Lactate (mmol/L)

Example 1

Suspected or documented infection (1 = yes) = 1, Baseline SOFA = 0 points, Current SOFA = 2 points, Vasopressors required to keep MAP ≥65 mmHg (1 = yes) = 0, Lactate = 1.5 mmol/L

→ SOFA increase: 2 points

Example 2 (×1.5)

Suspected or documented infection (1 = yes) = 1.5, Baseline SOFA = 0 points, Current SOFA = 3 points, Vasopressors required to keep MAP ≥65 mmHg (1 = yes) = 0, Lactate = 2.25 mmol/L

→ SOFA increase: 3 points

Related calculators

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.

More calculators in this category

Explore related free tools

NRS-2002 MUST Berg Balance Scale Morse Fall Scale Braden Scale Norton Scale Waterlow Scale Wagner Wound Scale Bova Score Tenecteplase Dose GRACE 2.0 CRUSADE

Sepsis-3 Definition