anaphylactic shock

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Definition

Noun: A severe, rapid, and potentially fatal systemic allergic reaction. It is a type of hypersensitivity reaction to an allergen (such as certain foods, drugs, insect venom, or latex) to which the body has developed a heightened sensitivity from a previous exposure.

Usage

This term is used in medical contexts to describe the most acute and dangerous form of an allergic reaction. It refers to a specific physiological state involving widespread effects on the cardiovascular and respiratory systems.

Examples
  • The patient went into anaphylactic shock after being stung by a bee.
  • Epinephrine is the first-line treatment for anaphylactic shock.
  • Symptoms of anaphylactic shock include difficulty breathing, a sudden drop in blood pressure, and loss of consciousness.
Advanced Usage
  • "to go into anaphylactic shock": This is the most common phrase used to describe the onset of this condition.
    • Without immediate treatment, she could go into anaphylactic shock.
  • "to be in anaphylactic shock": Describes the state of experiencing the reaction.
    • The paramedics arrived to find the man in anaphylactic shock.
Variants and Related Words
  • Anaphylaxis (n): The broader term for the severe allergic reaction of which anaphylactic shock is the most critical manifestation. Anaphylactic shock specifically implies circulatory collapse.
  • Anaphylactic (adj): Relating to or causing anaphylaxis.
    • He had an anaphylactic reaction to the antibiotic.
Synonyms
  • Systemic allergic reaction
  • Severe hypersensitivity reaction
Notes on Meaning

While "anaphylactic shock" is a specific and grave medical condition, the term "shock" alone in a medical context can refer to other life-threatening states (e.g., septic shock, cardiogenic shock) characterized by inadequate blood flow. "Anaphylactic" specifies the allergic cause.

Noun
  1. a severe and rapid and sometimes fatal hypersensitivity reaction to a substance (especially a vaccine or penicillin or shellfish or insect venom) to which the organism has become sensitized by previous exposure