Red flags
- qSOFA ≥2
- Lactate >2 mmol/L
- Persistent hypotension despite fluids
First steps
- Recognize, escalate, draw labs + 2 sets cultures
- Lactate, blood gas, CBC, CRP, procalcitonin
Key investigations
- Source identification: CXR, urine, USG, CT
- Repeat lactate at 2–4 h
Differentials
- Pneumonia, UTI, intra-abdominal, skin/soft tissue, CNS, catheter-related
Initial management
- Broad-spectrum antibiotics within 1 h
- 30 ml/kg crystalloid for hypotension/lactate >4
- Vasopressor to MAP ≥65 (noradrenaline)
- Source control
Referral
- ICU
- Surgical source control
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