Recognising Sepsis Early: A Refresher

Sepsis remains one of the most important emergencies in clinical practice. Despite advances in awareness, monitoring systems, antibiotics, and critical care, it continues to cause avoidable harm when it is missed or treated too late. The key message is simple but worth repeating: sepsis is a life-threatening response to infection, and early recognition can change the outcome.

In day-to-day practice, sepsis is rarely announced clearly. It often presents as a patient who is “not quite right”, a set of observations that are gradually worsening, or a clinical picture that feels more concerning than the numbers alone suggest. A patient with a known or suspected infection who becomes more confused, breathless, hypotensive, tachycardic, drowsy, mottled, oliguric, or simply looks significantly unwell should prompt urgent reassessment.

Recognising sepsis means looking at the whole patient rather than relying on one result or one observation. Track-and-trigger systems such as NEWS2 are valuable because they help identify deterioration early and create a shared language for escalation. However, they do not replace clinical judgement. A low score should not reassure us if the patient looks unwell, and a rising score should always be taken seriously, even before the patient reaches a critical threshold.

Certain groups need particular vigilance. Older patients, immunosuppressed patients, pregnant or recently pregnant women, children, and patients with multiple comorbidities may not present in a textbook way. Fever may be absent. Symptoms may be vague. Confusion, reduced mobility, poor oral intake, or a general decline may be the first signs of a serious infection. In these situations, a low threshold for senior review is often safer than waiting for the picture to become obvious.

Once sepsis is suspected, time matters. The priorities are familiar but important: assess the patient promptly, obtain appropriate cultures, give antibiotics without unnecessary delay, support circulation with fluids where indicated, monitor urine output, check lactate and relevant blood tests, and reassess frequently. These steps should happen alongside clear communication with senior clinicians, nursing staff, microbiology, and critical care when escalation is needed.

Good sepsis care is not only about starting treatment; it is also about reviewing the response. Is the blood pressure improving? Is the respiratory rate settling? Is the patient becoming more alert? Is the urine output adequate? Are we using the right antibiotics for the likely source? Has source control been considered, such as drainage of an abscess or removal of an infected line? Reassessment is what prevents initial treatment from becoming a false sense of security.

Communication is central. When a patient is deteriorating, vague concern can easily be lost in a busy clinical environment. Clear language helps: “I am worried this patient may have sepsis” immediately signals urgency. Structured handovers, early senior involvement, and documenting the working diagnosis and plan all reduce the risk of delay.

Every doctor, regardless of specialty or grade, plays a role in recognising sepsis early. It is often the junior doctor, nurse, healthcare assistant, GP, or colleague reviewing the patient first who notices that something has changed. Taking that concern seriously, escalating early, and acting decisively can make a real difference.

Sepsis is common, serious, and time-critical. The safest approach is to keep a low threshold for concern in any patient with suspected infection and signs of deterioration. Early recognition, prompt treatment, repeated reassessment, and clear escalation remain the foundations of good sepsis care.