Chapter 20 Immunologic Emergencies Flashcards
Allergen
Substance that cause an allergic reaction
Allergic reaction
The body’s exaggerated immune response to an internal or surface agent
Anaphylaxis
And extreme, life-threatening, systemic allergic reaction that may include shock and respiratory failure
Angioedema
Localized areas of swelling beneath the skin, often around the eyes and lips, but it can also involve other body areas as well
Envenomation
The act of injecting venom
Epinephrine
A substance produced by the body (commonly called adrenaline), and a drug produced by pharmaceutical companies that increases pulse rate and blood pressure; the drug of choice for an anaphylactic reaction
Histamines
Chemical substances released by the immune system and allergic reaction’s that are responsible for many of the symptoms of anaphylaxis such as vasodilation
Immune response
The body’s response to a substance perceived by the body as foreign
Immune system
The bodies system that includes all of the structures and processes designed to mount a defense against foreign substances and disease causing agents
Immunology
The study of the body’s immune system
Leukotrienes
Chemical substances that contribute to anaphylaxis; released by the immune system in allergic reaction’s
Stridor
A harsh, high-pitched respiratory sound, generally heard during inspiration, that is caused by partial blockage or narrowing of the upper airway; maybe audible without a stethoscope
Toxin
A poison or harmful substance
Urticaria
Small areas of generalized itching and/or burning that appear as multiple raised areas on the skin; hives
Wheal
A raised, swollen, well defined area on the skin resulting from an insect bite or allergic reaction
