| PCA | 1) Passive Cutaneous Araphylaxis 2) Posterior Cerebral Artery |
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| CPC | central posterior curve; cerebellar Purkinje cell; cerebral palsy clinic; cerebral performance categ... |
| CPM | central pontine myelinosis; chlorpheniramine maleate; continuous passive motion; critical path metho... |
| FPM | filter paper microscopic [test]; full passive movements |
| PA | panic attack; pantothenic acid; paralysis agitans; paranoia; passive aggressive; pathology; patient'... |
| CPM | Continuous passive motion |
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| FPT | Failure of passive transfer |
| PAR | Passive Anterior Rhinomanometry |
| PAR | Passive Avoidance Response |
| PCA | Passive Cutaneous Anaphylaxis |
| passive | Neither spontaneous nor active, not produced by active efforts. Origin: L. Passivus (18 Nov 1997) |
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| passive agglutination | Agglutination of particles that have been coated with soluble antigen, by antiserum specific for the adsorbed antigen. Synonym: indirect agglutination. (05 Mar 2000) |
| passive anaphylaxis | A reaction resulting from inoculation of antigen in an animal previously inoculated intravenously with specific antiserum from another animal, a latent period being required between the two inoculations. Synonym: antiserum anaphylaxis. (05 Mar 2000) |
| passive atelectasis | The pulmonary collapse that occurs due to a space-occupying intrathoracic process such as pneumothorax or hydrothorax. (05 Mar 2000) |
| passive clot | A clot formed in an aneurysmal sac consequent to the cessation or slowing of circulation through the aneurysm. (05 Mar 2000) |
| passive congestion | Congestion caused by obstruction or slowing of the venous drainage, resulting in partial stagnation of blood in the capillaries and venules. (05 Mar 2000) |
| passive cutaneous anaphylaxis | 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. (12 Dec 1998) |
| passive cutaneous anaphylaxis test | An animal is injected intradermally with antibody (usually IgE) and subsequently challenged intravenously with a mixture of antigen and Evans blue dye 24-48 hours later. A dark blue area indicates a positive reaction due to the leakage of the dye at the site of antigen-antibody reactions. (05 Mar 2000) |
| passive diffusion | See: facilitated transport. (05 Mar 2000) |
| passive duction | A manoeuver to determine whether a mechanical obstruction is present in the eye; with forceps grasping an eye muscle, an attempt is made to passively move the eyeball in the direction of restricted rotation. Synonym: passive duction. (05 Mar 2000) |
| passive eruption | The apparent continued eruption of the teeth, actually the result of regression of the gingivae and crestal bone. Polymorphous light eruption, a common pruritic papular eruption appearing in a few hours and lasting up to several days on skin exposed to shortwave ultraviolet light; subepidermal oedema and deep perivascular lymphocytic infiltration is seen microscopically. Eruption sequestrum, spicule of bone overlying the central occlusal fossa of an erupting permanent molar. Serum eruption, urticaria seen in serum sickness. Surgical eruption, the uncovering of an unerupted tooth to permit its further eruption into the oral cavity by surgically removing overlying soft tissue, bone, and sometimes teeth. (05 Mar 2000) |
| passive haemagglutination | A kind of passive agglutination in which erythrocytes, usually modified by mild treatment with tannic acid or other chemicals, are used to adsorb soluble antigen onto their surface, and which then agglutinate in the presence of antiserum specific for the adsorbed antigen. Synonym: indirect haemagglutination test. (05 Mar 2000) |
| passive hyperaemia | Hyperaemia due to an obstruction in the flow of blood from the affected part, the venous radicles becoming distended. Synonym: venous hyperaemia. (05 Mar 2000) |
| passive immunity | <immunology> Immunity acquired by the transfer from another animal of antibody or sensitised lymphocytes. Passive transfer of antibody from mother to offspring is important for immune defense during the perinatal period. (18 Nov 1997) |
| passive immunization | The production of passive immunity. (05 Mar 2000) |
| artificial passive immunity | See: acquired immunity. (05 Mar 2000) |
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| reversed passive anaphylaxis | An anaphylactic reaction induced in an animal injected with a specific antigen, which will bind to reactive tissue, and then, after a latent period, with serum from another animal previously sensitised to the identical antigen. Synonym: reversed anaphylaxis. (05 Mar 2000) |
| reverse passive haemagglutination | If antibodies are bonded to the surface of red blood cells haemagglutination will occur if the appropriate bi or multivalent antigen is added in soluble or microparticulate form. Used as a test for for example Hepatitis B virus in the serum. (18 Nov 1997) |
| motion therapy, continuous passive | Movement of a body part initiated and maintained by a mechanical or electrical device to restore normal range of motion to joints, muscles, or tendons after surgery, prosthesis implantation, contracture flexion, or long immobilization. (12 Dec 1998) |
| continuous passive motion | A technique in which a joint, usually the knee, is moved constantly in a mechanical splint to prevent stiffness and to increase the range of motion. (05 Mar 2000) |
| specific passive immunity | See: acquired immunity. (05 Mar 2000) |
| natural passive immunity | Immunity conferred by the mother on the foetus or newborn. (14 Nov 1997) |
| immunization, passive | Transfer of immunity from immunised to non-immune host by administration of serum antibodies, or transplantation of lymphocytes (adoptive transfer). (12 Dec 1998) |
| euthanasia, passive | The withdrawing or withholding of extraordinary means used to prolong life. (12 Dec 1998) |
Synonyms : Cutaneous Anaphylaxis, Passive
Synonyms : Passive Aggressive Personality Disorders, Passive-Aggressive Personality, Personality Disorders, Passive Aggressive, Disorder, Negativistic Personality, Disorder, Passive-Aggressive Personality, Disorders, Negativistic Personality
| passive transport |
transport of a substance across a cell membrane by diffusion; expenditure of energy is not required
Ãâó: wordnet.princeton.edu/perl/webwn
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| passive |
lacking in energy or will; "Much benevolence of the passive order may be traced to a disinclination to inflict pain upon oneself"- George Meredith peacefully resistant in response to injustice; "passive resistance" passive voice: the voice used to indicate that the grammatical subject of the verb is the recipient (not the source) of the action denoted by the verb; "`The ball was thrown by the boy' uses the passive voice"; "`The ball was thrown' is an abbreviated passive" expressing that the subject of the sentence is the patient of the action denoted by the verb; "academics seem to favor passive sentences"
Ãâó: wordnet.princeton.edu/perl/webwn
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| passive immunity |
an impermanent form of acquired immunity in which antibodies against a disease are acquired naturally (as through the placenta to an unborn child) or artificially (as by injection of antiserum)
Ãâó: wordnet.princeton.edu/perl/webwn
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| passive anaphylaxis |
anaphylaxis occurring in a normal individual as a result of the injection of the serum of a previously sensitized individual; called also antiserum a.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| 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. ...
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| passive | the voice used to indicate that the grammatical subject of the verb is the recipient (not the source) of the action denoted by the verb |
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| passive | lacking in energy or will |
| passive | (grammar) passive voice |
| passive | peacefully resistant in response to injustice |
| passive | air defense by the use of deception or dispersion or protective construction |
| passive | an impermanent form of acquired immunity in which antibodies against a disease are acquired naturally (as through the placenta to an unborn child) or artificially (as by injection of antiserum) |
| passive | a type of LCD screen used for some portable computers |
| passive | peaceful resistance to a government by fasting or refusing to cooperate |
| passive | a reformer who believes in passive resistance |
| passive | transport of a substance across a cell membrane by diffusion |
| passive | a trust in which the trustee performs no active duties |
| passive | the voice used to indicate that the grammatical subject of the verb is the recipient (not the source) of the action denoted by the verb |
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