The Sepsis Clock: Why Waiting to See If the Fever Settles Can Be Dangerous

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One of the most common symptoms we see is a fever. We take a pill, drink some fluids, lie down and often say to ourselves, 'Let's wait until tomorrow and see.'

Most fevers are not an emergency. But sometimes, the first sign you see of a much bigger issue is a fever, and that issue is sepsis.

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Sepsis is a life-threatening medical emergency that arises when the body's response to an infection leads to organ dysfunction. The important thing to remember is that sepsis is not simply a very high fever. It may show up as a high or low temperature, chills, difficulty breathing, confusion, extreme weakness or decreased urine output.

We spoke to Dr Pruthwil Patil, HOD and Cluster Head, Dept of Emergency Medicine, HOSMAT Hospital, who explained when fever could turn into an emergency.

When It's Risky To "Wait And Watch"

The thing with sepsis is that it can look like a normal infection at first.

"A person may have a fever after a urinary infection, pneumonia, skin infection or some other source. But if the infection begins to affect the body's organs and circulation, the situation can spiral rapidly," said Dr Patil.

That is why the general condition of the patient is more important than the number on the thermometer.

"People with fever who are getting unusually sleepy, confused, breathless, fragile, cold or clammy, or making very little urine should not be watched at home. These can be warning signs that you need to see a doctor immediately," warned Dr Patil.

Older adults can actually be quite tricky because they may not always develop a high fever. Sometimes, confusion, sudden changes in behaviour, or weakness may be more noticeable than a fever.

Think Outside The Fever

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A common misunderstanding is that controlling the fever means controlling the infection.

Paracetamol can reduce the temperature but does not treat the underlying cause of a serious bacterial infection or sepsis.

"Likewise, taking leftover antibiotics without medical advice is not a safe strategy. Sepsis requires assessment of the clinical picture to establish the probable source of infection, to assess organ function and to determine whether antimicrobial treatment is indicated," added Dr Patil.

There is no single blood test or biomarker that can confirm or rule out sepsis. It is a clinical diagnosis based on the patient's overall condition, examination and investigations.

Why Each Hour Counts

Once sepsis is recognised, treatment should not be unduly delayed.

The 2026 Surviving Sepsis Campaign guidelines recommend prompt antimicrobial treatment, ideally within 1 hour of recognition, in adult patients with suspected or confirmed sepsis without shock and in those with septic shock. In some patients who have a possible diagnosis of sepsis but do not have shock, clinicians may perform a rapid, time-limited assessment before deciding on antimicrobial therapy.

This doesn't mean every febrile person needs antibiotics in the hour. This means that if sepsis is suspected or recognised, clinicians must act quickly.

Treatment may include antibiotics when indicated, intravenous fluids, oxygen, close monitoring and addressing the source of infection. Some patients may need intensive care.

Don't Wait For The Entire Story From The Thermometer

"If a person has a fever but is otherwise alert, breathing comfortably, drinking fluids and improving, it may not be an emergency. But if the person is getting progressively worse, don't wait for the fever to settle before going to the doctor," said Dr Patil.

Look out for red flags such as:

• New confusion or trouble awakening
• Rapid or troubled breathing
• Severe chills or feeling unusually cold
• Blue or mottled skin, pale
• Pass very little or no urine
• Severe weakness or significant worsening of general condition

These symptoms need urgent medical attention.

The sepsis clock is really about early deterioration recognition.

Bottomline

Dr Patil concluded, "A fever may occur often. A patient who is deteriorating may not have a fever. It is better to seek medical help early rather than lose valuable time waiting for the fever to come down if the infection is accompanied by a sudden change in the way someone looks, behaves, breathes or responds."

Disclaimer: The information provided in this article is for general informational and educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or a qualified healthcare provider with any questions you may have regarding a medical condition.