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qSOFA (ext.)

qSOFA (ext.): 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.

qSOFA (ext.)

Respiratory rate/min
Systolic BPmmHg
Altered mentation, GCS <15 (1 = yes)
qSOFA (ext.)
0points
Screening outside the ICU in suspected infectionqSOFA (ext.): calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.
Risk of poor outcome
Not increased

More about: qSOFA (ext.)

What it calculates

The “qSOFA (ext.)” calculator computes qSOFA (ext.) in points from 3 parameters: respiratory rate (/min), systolic bp (mmHg), altered mentation, gcs <15 (1 = yes).

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

Example calculation

With parameters Respiratory rate = 18 /min, Systolic BP = 120 mmHg, Altered mentation, GCS <15 (1 = yes) = 0 the result is 0 points (Screening outside the ICU in suspected infection).

How to use

  1. Enter respiratory rate, systolic bp and altered mentation, gcs <15 (1 = yes) — each field above is adjustable with a slider.
  2. qSOFA (ext.) (points) 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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