The definition of a possum, or opossum, is a tree-dwelling nocturnal marsupial with fur and a prehensile tail. A small Australian mammal that lives in a tree and only comes out at night is an example of a possum. possum. possum.
More than two thirds of patients who die of anaphylaxis do so within the first: half hour. ____, a harsh, high-pitched inspiratory sound, occurs when swelling in the upper airway closes off the airway; the swelling can eventually lead to total obstruction. Stridor.
Anaphylaxis is an extreme form of allergic reaction. It can cause swelling of the lips and tongue, breathing problems, collapse and loss of consciousness. Anaphylaxis can cause death and is therefore a medical emergency. If you suspect someone is suffering anaphylaxis, you should call 999/112/911 for an ambulance.ome people who have had a severe allergic reaction or anaphylactic reaction in the past carry an adrenaline (epinephrine) pen. This can be self-injected or injected by a bystander, in the event of anaphylaxis. Anaphylaxis is the name given to an extreme form of allergic reaction.