diagnositcs

Question 1

specificity

Answer 1

the ability of an antibody or a
lymphocyte to recognize a single antigen,
or of a diagnostic test to identify a specific
pathogen

Question 2

sensitivity

Answer 2

the lowest amount of antigen
that can be detected by a diagnostic test

Question 3

selective media

Answer 3

ulture media that allow
the growth of certain organisms while
inhibiting the growth of others through
one or more added media components

Question 4

differential media

Answer 4

a growth media that
allow identification of microorganisms
based on phenotypic properties

Question 5

minimum inhabitory concentration

Answer 5

the smallest amount of an agent
needed to completely inhibit the growth of
an organism in vitro

Question 6

serology

Answer 6

the study of antigen–antibody
reactions in vitro

Question 7

titer

Answer 7

the quantity of a substance, such as
antibody, in a solution

Question 8

monoclonal antibodies

Answer 8

a single
type of antibody made by a single B cell
hybridoma clone

Question 9

precipitation

Answer 9

a reaction between antibody
and a soluble antigen resulting in a visible,
insoluble complex

Question 10

agglutination

Answer 10

a reaction between antibody
and particle-bound antigen resulting in
visible clumping of the particles

Question 11

fluorescent antibodies

Answer 11

an antibody molecule
covalently modified with a fluorescent
dye that makes the antibody visible under
fluorescent light

Question 12

enzyme immunoassays

Answer 12

a test that uses
antibodies or antigens linked to enzymes to
detect antigens or antibodies in body fluids

Question 13

immunoblot

Answer 13

the use
of labeled antibodies to detect specific
proteins after separation by electrophoresis
and transfer to a membrane