KROK 1 Stomatology 2014 – Question 125 · KROK (Dentistry)

During anesthesia of the oral mucosa a 37-year-old patient has had anaphylactic reaction (widespread vasodilation, increased vascular permeability with liquid exiting the blood vessels and penetrating in the tissues). What type of hypersensitivity reaction occurred in the patient?

  1. A. Type I (anaphylactic)
  2. B. Type IV (cell cytotoxicity)
  3. C. Type II (antibody-dependent)
  4. D. Type III (immune complex)
  5. E. Type V (granulomatosis)
Hint

Consider which reaction develops within minutes when an allergen binds antibodies fixed on mast cells, releasing histamine.

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