qSOFA Score (quick SOFA) Calculator

Form

Results

qSOFA score

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What is qSOFA Score?

qSOFA combines three bedside findings used to identify higher-risk patients with suspected infection.

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How to Use This Calculator

  1. Enter or select Glasgow Coma Scale (GCS) score, Respiratory rate (RR), Systolic blood pressure (SBP).
  2. Check the unit beside each measurement. For a percentage or rate, use the scale and time period stated in the form.
  3. Choose Calculate, then compare the output with the formula and example below. If you change a value or option, calculate again to update the result.
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Formula Used

Add one point each for altered mentation, respiratory rate ≥22/min and systolic BP ≤100 mmHg.
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Variables Explained

InputWhat it means
Glasgow Coma Scale (GCS) scoreUse the observed finding or laboratory value for this criterion, following the definition shown in the form.
Respiratory rate (RR)Use the observed finding or laboratory value for this criterion, following the definition shown in the form.
Systolic blood pressure (SBP)The upper blood-pressure reading, normally stated in mmHg.
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Worked Example

Meeting the respiratory-rate and blood-pressure criteria gives a score of 2.

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Why Use This Calculator?

Use the calculation to make the method and its inputs easier to check with a healthcare professional. Its meaning depends on the clinical setting and on whether the underlying method is appropriate for that person.

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Common Mistakes

    • qSOFA alone neither diagnoses nor rules out sepsis, and a low score must not delay assessment.
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Frequently Asked Questions

Is this result a diagnosis or treatment instruction?

No. It describes a calculation or score from the supplied information. A qualified clinician must check the measurements, the method’s applicability and the wider clinical picture.

Can I enter the units from any lab report?

Use the units specified in the form and select a conversion only where the page provides one. Different substances need different conversion factors; a mismatch can produce a plausible but incorrect result.

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Sources & References