Passive Cutaneous Anaphylaxis

Overview

An evanescent cutaneous reaction occurring when antibody is injected into a local area on the skin and antigen is subsequently injected intravenously along with a dye. The dye makes the rapidly occurring capillary dilatation and increased vascular permeability readily visible by leakage into the reaction site. PCA is a sensitive reaction for detecting very small quantities of antibodies and is also a method for studying the mechanisms of immediate hypersensitivity.

This information is general and should not be treated as medical advice. Always speak directly with a qualified healthcare professional before making decisions about treatment, diagnosis, procedures, medicines or care.

Quick facts about Passive Cutaneous Anaphylaxis

Topic type

Diagnostic Test

Category

Diagnostics

MeSH classification

E01.370.225.812.871.600|E05.200.812.871.600|E05.478.594.890.600|G12.122.754

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