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Anaphylactic shock is caused by a severe anaphylactic reaction to an allergen, antigen, drug, or foreign protein causing the release of histamine which causes widespread vasodilation, leading to hypotension and increased capillary permeability. Signs of anaphylaxis Signs typically occur after exposure to an allergen and may include:
Abdominal pain, also known as a stomach ache, is a symptom associated with both non-serious and serious medical issues. Since the abdomen contains most of the body's vital organs, it can be an indicator of a wide variety of diseases.
Abdominal migraine primarily affects children, for whom it is a common cause of chronic abdominal pain. It may be as high as 9% or as low as 1% among children. [23] It is rare in adults. [3] However, children diagnosed with abdominal migraines may have migraine headaches as adults. [38] The mean age of diagnosis is 7 years.
New American guidelines published in 2023 recommended physicians to suspect alpha-gal syndrome in cases with abdominal pain and GI symptoms, but without traditional allergy symptoms like hives. [23] In 2023, a false conspiracy theory connecting alpha-gal syndrome to Gates Foundation tick research was spread on social media. [53] [54]
Anaphylactoid reaction, non-immune anaphylaxis, or pseudoanaphylaxis, is a type of anaphylaxis that does not involve an allergic reaction but is due to direct mast cell degranulation. [ 10 ] [ 42 ] Non-immune anaphylaxis is the current term, as of 2018, used by the World Allergy Organization [ 42 ] with some recommending that the old ...
This is a shortened version of the seventeenth chapter of the ICD-9: Diseases of the Digestive System. It covers ICD codes 800 to 999 . The full chapter can be found on pages 473 to 546 of Volume 1, which contains all (sub)categories of the ICD-9.
A severe case of an allergic reaction, caused by symptoms affecting the respiratory tract and blood circulation, is called anaphylaxis. When symptoms are related to a drop in blood pressure, the person is said to be in anaphylactic shock. Anaphylaxis occurs when IgE antibodies are involved, and areas of the body that are not in direct contact ...
Mosquito bite allergies are informally classified as 1) the skeeter syndrome, i.e., severe local skin reactions sometimes associated with low-grade fever; 2) systemic reactions that range from high-grade fever, lymphadenopathy, abdominal pain, and/or diarrhea to, very rarely, life-threatening symptoms of anaphylaxis; and 3) severe and often ...