MICB 202 Study Guide - Midterm Guide: Anaphylaxis, Contact Dermatitis, Adverse Drug Reaction
Document Summary
Micb 202 - topic 5: explain the processes involved in the development of an allergic response, describe the similarities and differences between local and systemic allergic responses. Localized triggered by allergens that are trapped in the mucosal membrane. Cured by anti-histamines - they block the histamine receptor on smooth muscle cells and endothelium that binds histamine, they do not prevent the release of histamine. Systemic triggered by allergens that circulate throughout the body. Epinephrine reverses the symptoms of anaphylactic shock - relaxes airways, constricts blood vessels to raise blood pressure: describe the process of development of a delayed-type hypersensitivity response. This test is used to see if the patient has been previously exposed to the organism that causes tuberculosis, mycobacterium tuberculosis (mtb). A positive reaction means that the patient has had previous exposure to the mtb. In the test, a non-infectious mtb is injected under the skin.
