Immunology Flashcards

0
Q

The two most common causes of fatal anaphylaxis?

A

Injected penicillin
Bee and wasps stings

400-800 deaths annually in US attributed to anaphylaxis

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1
Q

Exaggerated response by immune system to foreign substance

A

Allergic Reaction

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2
Q

Principal body system involved in allergic reactions
Responsible for combating infection
Components found in blood, bone marrow, lymphatic system.

A

Immune system

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3
Q

Destruction or inactivation of pathogens, abnormal cells, foreign molecules such as toxins

A

Goals of immune response

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4
Q

Direct attack of foreign substance by specialized of immune system.

A

Cellular immunity

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5
Q

Chemical attack of invading substance

A

Humoral immunity

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6
Q

Principal chemical agents of this attack are?

A

Antibodies

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7
Q

Antibodies are manufactured by specialized cells of immune system called

A

B cells

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8
Q

Humoral immune response begins with exposure of body

A

Antigen

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9
Q

Any substance capable of inducing a immune response

A

Antigen

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10
Q

Inital response to antigen

Several days are required before both cellular and humoral components of immune system respond

A

Primary response

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11
Q

Antibodies specific for offending antigen.

Antigen specific antibodies more effective

A

Secondary exposure

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12
Q

Inital exposure of individual to antigen ; results in immune response

A

Allergies

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13
Q

Most common cause of fatal anaphylaxis

A

Parentereal penicillin

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14
Q

Second most frequent cause of fatal anaphylaxis

A

Insect stings

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15
Q

IgE release histamine, heparin and other substances

A

De granulation

16
Q

Principal chemical mediator of allergic reaction is

A

Histamine (

17
Q

Potent substance which causes bronchoconstriction , increased intestinal motility, vasodilation, increased vascular permeability

A

Histamine

18
Q
Cardiovascular 
Respiratory
GI
And the skin 
Are?
A

Principal body systems affected by anaphylaxis

19
Q

End tidal CO2 level may climb due to development of both ?

A

Respiratory and metabolic acidosis

20
Q

Cellular immunity

A

Involves direct attack of the foreign substance by specialized cells of the immune system.
these cells physically engulf and deactivate or destroy offending agent

21
Q

Humoral immunity

A

Chemical attack of the invading substance

*The principal chemical agents of this attack are antibodies, also called immunoglobulin

22
Q

Sensitization

A

The initial exposure of an individual to an antigen

23
Q
Drugs
Food and food additives 
Animals
Insects (Hymenoptera stings) and insect parts
Fungi and molds
Radiology contrast materials
A

Common allergies

24
Q

H1 receptor

A

Smooth muscle, endothelial cells

-Acute allergic reactions

25
Q

H2 receptor

A

Gastric parietal cells

-secretion of gastric acid