A patient develops wheezing, facial swelling and a falling blood pressure minutes after an injection. Which action is the priority?
Correct answer: C. Call for emergency help and support the airway
- A. Give oral fluids and observe
- B. Place the patient upright and reassess
- C. Call for emergency help and support the airway
- D. Apply a warm compress to the injection site
Explanation
Wheezing, facial swelling and hypotension suggest anaphylaxis, which threatens the airway and breathing and can rapidly cause circulatory collapse. The priority is emergency help with airway and breathing support, while prescribed emergency treatment such as intramuscular adrenaline is prepared or given according to protocol.
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Blood and immunity covers plasma, red blood cells, white blood cells, platelets, haemoglobin, blood groups and haemostasis. It explains innate and adaptive defenses, antibodies, lymphocytes, inflammation, vaccination and immune memory, with a distinction between active and passive immunity and between antigen and antibody.
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