Exam 9: Overview of Immunochemical Methods Used for Organism Detection

A Western blot assay was performed,and bands were observed at p24,p41,and gp120/160 (kilodaltons).The organism can be identified as:

Complement-fixing antibodies are those that function by:

Polyclonal antibodies are those that:

The presence of which of the following antibodies usually indicates a recent or an active infection?

Monoclonal antibodies are those that:

Neutralizing antibodies are those that function by:

The study of the diagnosis of disease by measuring antibody levels in serum is called:

The immunochemical test that involves the agglutination of an artificial carrier particle with the antigen bound to its surface and an antibody present in a specimen is referred to as:

A positive test was observed on a serum sample that resulted in the formation of a fine precipitate on a reaction card.The most likely organism serologically identified is:

The precipitin test that involves antigen and antibody diffusing toward each other,producing a visible precipitin band at the point at which they meet,is referred to as:

A positive latex agglutination test was observed in a sample containing Cryptococcus neoformans.The specimen of choice to identify this pathogen is:

Cell-mediated immune responses,such as attacking and killing microorganisms or host cells that are damaged or infected,are carried out by:

Opsonizing antibodies are those that function by:

Specific proteins produced by cells of the immune system in response to the presence of foreign molecules that circulate in the serum and are present in secretions such as saliva are called:

A test procedure that applies a specific fluorescent dye-antibody complex to a slide to which the patient specimen has been applied is referred to as a(n):

For an accurate diagnostic of a current infection,acute and convalescent sera should reflect a(n)_____ in the patient's antibody titer of _____ doubling dilutions.

The antibody that is predominantly found in tears,saliva,and intestinal secretions is:

A patient was suspected of having a rickettsial infection after hiking in the Rocky Mountains.A Weil-Felix test was performed,which resulted in no agglutination observed.Which one of the following statements explains this discrepancy?

For most pathogens to be diagnostic of current infection,there must be a(n)_____ in the patient's antibody titer of _____ doubling dilutions.

The difference between latex agglutination and hemagglutination is: