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When to Go to A&E Versus Wait for a GP Appointment

Author :
Camilla Tubertini
Date :
30 Apr, 2026
When to Go to A&E Versus Wait for a GP Appointment
Flares exist on a spectrum. Some require immediate emergency care, some need same-day GP contact, and some can be managed at home. Knowing which category a symptom falls into prevents both dangerous delays and unnecessary A&E visits. When in doubt, seek advice rather than waiting.

Why this matters

For people living with immune conditions, the line between a severe flare and a genuine emergency isn’t always obvious. Going to A&E when it isn’t needed means hours of waiting for a service that cannot help with what’s actually wrong. Not going when it’s needed can be dangerous. A clear framework makes the decision easier under pressure.

Call 999 or go to A&E immediately

  • Breathing difficulties: Shortness of breath at rest, rapid breathing, gasping, or blue lips or fingers
  • Severe chest pain: Crushing pain radiating to the jaw or arm, or tightness and pressure
  • Sudden severe headache: The worst headache of your life, particularly with a stiff neck, confusion, or vision loss
  • Sudden vision loss: Loss of vision in one or both eyes, double vision, or a curtain coming down
  • Suspected sepsis: Fever over 38°C with confusion, extreme weakness, rapid breathing, rapid heart rate, or mottled skin
  • Severe abdominal pain: Unrelenting pain with vomiting, inability to keep fluids down, rigid abdomen, or fever
  • Neurological changes: Sudden weakness on one side, slurred speech, facial drooping, confusion, or seizures
  • Significant bleeding: Coughing up blood, vomiting blood, heavy rectal bleeding, or blood in urine beyond streaks

Contact GP or specialist the same day

  • High persistent fever: Over 38°C lasting more than 24 hours with no obvious cause
  • Significant joint swelling: Multiple joints suddenly very swollen, hot, and painful
  • New rash with systemic symptoms: Widespread rash with fever, non-blanching rash, or blistering rash
  • Medication side effects: Severe nausea, persistent vomiting, yellowing of eyes or skin, unusual bruising, or severe mouth ulcers

Manage at home with routine follow-up

  • Mild to moderate increase in usual symptoms that remains manageable
  • Low-grade fever between 37.5 and 38°C, monitoring closely
  • Minor new symptoms such as a mild headache responsive to analgesia or a slight increase in fatigue

What you could do

When in doubt about which category applies, calling NHS 111 is a reasonable step. They can advise on urgency and direct to the most appropriate service.

  • Keep a note of current medications and diagnoses accessible, as this information speeds up any emergency assessment significantly
  • If going to A&E, mention immunosuppression early and clearly, as this changes how clinicians assess infection risk
  • If discharged from A&E but symptoms worsen, returning is always an option

This article is for general information purposes only and doesn’t constitute legal, financial or benefits advice. For advice specific to your situation, please speak to a qualified professional or contact an organisation such as Citizens Advice, who may be able to assist you further.

References:

‘Suspected Sepsis: recognition, diagnosis and early management (NICE guideline NG51)’ (2016) https://www.nice.org.uk/guidance/ng51

‘2013 IDSA clinical practice guideline for vaccination of the immunocompromised host’ (2014) https://doi.org/10.1093/cid/cit684

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