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Anaphylactic shock is associated with systemic vasodilation that causes low blood pressure which is by definition 30% lower than the person's baseline or below standard values. [17] Biphasic anaphylaxis is the recurrence of symptoms within 1–72 hours after resolution of an initial anaphylactic episode. [40]
When anaphylaxis is suspected, epinephrine solution should be given as soon as possible as an intramuscular injection, in the middle of the outer side of the thigh, which corresponds to the location of the vastus lateralis muscle. [3] The injection may be repeated every 5 to 15 minutes if there is insufficient response. [4]
Type I hypersensitivity (or immediate hypersensitivity), in the Gell and Coombs classification of allergic reactions, is an allergic reaction provoked by re-exposure to a specific type of antigen referred to as an allergen. [1] Type I is distinct from type II, type III and type IV hypersensitivities. The relevance of the Gell and Coombs ...
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:
A post-anesthesia care unit (PACU) and sometimes referred to as post-anesthesia recovery or PAR, or simply recovery, is a part of hospitals, ambulatory care centers, and other medical facilities. Patients who received general anesthesia , regional anesthesia , or local anesthesia are transferred from the operating room suites to the recovery area.
Vasodilatory shock, vasogenic shock, or vasoplegic shock is a medical emergency belonging to shock along with cardiogenic shock, septic shock, allergen-induced shock and hypovolemic shock. When the blood vessels suddenly relax, it results in vasodilation .
In this sense, "recovery" can be considered a synonymous term. This also sometimes includes patient care after a major surgery, [2] [3] under which they are required to visit the doctor for regular check-ups. [4] [5] Convalescent care facilities are sometimes recognized by the acronym TCF (Transitional Convalescent Facilities). [6]
Toxic shock syndrome, a specific type of severe infection; Anaphylactic shock, a result of severe allergic reaction; Neurogenic shock, due to a high spinal cord injury disrupting the sympathetic nervous system; Hypovolemic shock, resulting from an insufficient blood volume Hemorrhagic shock, from a large volume lost to bleeding