passive cutaneous anaphylaxis
- passive cutaneous anaphylaxis
- (PCA) a passively transferred local anaphylactic reaction used in the study of reaginic antibodies; the skin of an animal is sensitized by intradermal injection of serum from a sensitized animal, and after a 24- to 72-hour latent period the antigen and Evans blue dye are injected intravenously. Reaction of the antigen with skin-fixed antibody causes the release of histamine, which increases vascular permeability, permits leakage of the albumin-bound dye, and produces a blue spot at the site of the intradermal injection.
Medical dictionary.
2011.
Look at other dictionaries:
passive cutaneous anaphylaxis reaction — passive cutaneous anaphylaxis … Medical dictionary
passive cutaneous anaphylaxis test — see passive cutaneous anaphylaxis, under anaphylaxis … Medical dictionary
anaphylaxis — An induced systemic or generalized sensitivity; at times the term a. is used for anaphylactic shock. The term is commonly used to denote the immediate, transient kind of immunologic (allergic) reaction characterized by contraction of smooth … Medical dictionary
local anaphylaxis — anaphylaxis confined to a limited area, e.g., passive cutaneous anaphylaxis … Medical dictionary
PCA — Abbreviation for passive cutaneous anaphylaxis; patient controlled analgesia; patient controlled anesthesia. * * * pancreatic carcinoma; para chlor amphetamine; parietal cell antibody; passive cutaneous anaphylaxis; patient care assistant/aide;… … Medical dictionary
reaction — 1. The response of a muscle or other living tissue or organism to a stimulus. 2. The color change effected in litmus and certain other organic pigments by contact with substances such as acids or alkalies; also the property that such substances… … Medical dictionary
test — 1. To prove; to try a substance; to determine the chemical nature of a substance by means of reagents. 2. A method of examination, as to determine the presence or absence of a definite disease or of some substance in any of the fluids, tissues,… … Medical dictionary
pCa — A way of reporting calcium ion levels; equal to the negative decadic logarithm of the calcium ion concentration. * * * pancreatic carcinoma; para chlor amphetamine; parietal cell antibody; passive cutaneous anaphylaxis; patient care… … Medical dictionary
Hydrangenol — IUPAC name 8 hydroxy 3 (4 hydroxyphenyl) 3,4 dihydroisochromen 1 one … Wikipedia
RPCA — reverse passive cutaneous anaphylaxis … Medical dictionary
