qSOFA Score
Quick Sepsis-related Organ Failure Assessment
Clinical Management
Score ≥ 2 indicates a high risk of poor outcome and suggests the patient should be investigated for sepsis.
Mathematical Metric
Evidence & Lit
References: Singer M, et al. The Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3).
Singer et al., JAMA 2016 — Sepsis-3 Definitions (PMID: 26973543) →Frequently Asked Questions
What is the qSOFA score?
The quick SOFA (qSOFA) is a bedside clinical tool for rapid identification of patients likely to have poor outcomes due to infection-related organ dysfunction (sepsis). It scores three criteria: Respiratory Rate ≥22/min, Altered Mentation (GCS <15), and Systolic BP ≤100 mmHg.
What qSOFA score is considered high risk?
A qSOFA score of ≥2 out of 3 indicates high risk of poor outcome and should prompt clinicians to investigate for sepsis, initiate monitoring, and consider ICU-level care, per the Sepsis-3 consensus (Singer et al., JAMA 2016).
What is the difference between qSOFA and SOFA?
qSOFA is a 3-item bedside screening tool usable without lab tests. Full SOFA requires lab values (PaO2, bilirubin, creatinine, platelets) and is used for formal organ failure quantification in the ICU.
Should qSOFA replace SIRS criteria for sepsis screening?
The Sepsis-3 consensus replaced SIRS with qSOFA for out-of-ICU sepsis screening, arguing SIRS lacked specificity. Both tools remain in use across different guidelines and settings.