Managing Fever: A Practical Approach
For fever management, the most effective approach is to use acetaminophen (paracetamol) as first-line treatment while identifying and addressing the underlying cause. 1, 2
Initial Assessment and Home Management
For Adults with Fever:
- Take acetaminophen 325-650mg every 4-6 hours (not exceeding 3000mg in 24 hours) for symptomatic relief 1
- Alternative: ibuprofen 200-400mg every 4-6 hours (not exceeding 1200mg in 24 hours) 1
- Ensure adequate hydration by drinking plenty of fluids 1
- Use physical cooling methods if temperature exceeds 102°F (39°C):
- Cool, not cold, compresses to forehead, neck, and wrists
- Light clothing and minimal bedding
- Room temperature between 68-72°F (20-22°C)
When to Seek Medical Attention:
- Fever persists longer than 3 days 2
- Temperature exceeds 103°F (39.4°C)
- New symptoms develop 2
- Redness or swelling appears 2
- Pain worsens or lasts more than 10 days 2
Special Considerations
For Infants and Children:
- Acetaminophen is the preferred antipyretic for children 1
- For infants 8-60 days old with fever, seek immediate medical attention as they require specialized evaluation 3
For Critically Ill Patients:
- Target temperature range of 36.0-37.5°C to prevent secondary injury and minimize metabolic demands 1
- Apply cooling blankets set at 18°C and consider ice packs to groin, axilla, and neck for rapid temperature reduction 1
- Monitor core temperature continuously during cooling to prevent overcooling 1
Diagnostic Considerations
Infectious Causes:
- Evaluate for common sources of infection:
- Respiratory (pneumonia, bronchitis)
- Urinary tract
- Skin/soft tissue
- Surgical sites
- Central line-associated infections 1
Non-Infectious Causes:
Important Caveats
- Fever is a normal adaptive response to infection and its suppression may be potentially harmful in some cases 5
- Elderly and immunocompromised patients may not present with fever despite having serious infections 6
- Oral temperatures have poor sensitivity for diagnosing fever; consider core temperature measurement when there's concern 6
- Avoid routine use of antipyretics solely for temperature reduction in stable patients without discomfort 1
Remember that fever itself is not a disease but a symptom of an underlying condition. While managing the fever provides comfort, identifying and treating the cause is essential for resolution.