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Haematology 7 min read Undergraduate & Postgraduate

Sickle Cell Crisis: Pain, Chest Symptoms and Red Flags

An exam-focused approach to painful crisis, acute chest syndrome, infection, anaemia and other emergencies in sickle cell disease.

Exam-oriented educational summary · Updated 10 September 2026

Typical exam stem

A young adult with sickle cell disease presents with severe limb pain and fever. How would you assess and manage the patient?

Active exam mode

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1. Sixty-second answer plan

1:00

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2. Section checklist

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3. Exam-pearl flashcards

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4. Viva drill

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Question 1 of 30 confident

What is acute chest syndrome?

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1

Treat the presentation as an acute medical problem

A painful vaso-occlusive episode is common, but the examiner expects you to actively search for complications that can rapidly become life-threatening. Ask about chest pain, breathlessness, fever, neurological symptoms, priapism, abdominal pain and recent transfusion. Assess oxygen saturation, respiratory rate, temperature, haemodynamic state and pain severity.

2

Do not miss acute chest syndrome

  • Suspect acute chest syndrome when new respiratory symptoms or fever accompany a new pulmonary infiltrate.
  • Provide oxygen when hypoxaemic, adequate analgesia, careful hydration, antibiotics according to local protocol and early specialist review.
  • Escalating hypoxaemia, respiratory distress or falling haemoglobin may require transfusion support and critical-care input.
  • Infection can trigger crisis and should be investigated promptly when fever or systemic illness is present.
3

Painful crisis management

Provide prompt, effective analgesia and reassess frequently. Hydration should correct dehydration without causing fluid overload. Encourage mobilisation and supportive care when safe. Investigate only as indicated by the presentation; uncomplicated pain does not require extensive testing simply because the patient has sickle cell disease.

Guideline source for further reading

This page is an original exam-revision summary. For clinical decisions, use current local protocols and the primary guidance below.

Educational use: This material is designed for examination revision and does not replace patient-specific clinical judgement, local treatment protocols or specialist advice.