Patho Immunologic Diagnosis

All of the following are true in Flourescent immunoassays except

It is used to detect antibody in tissue sections

It is a semiquantitative and qualitative immunoassay

The direct IF uses secondary Ab of which fluorophore is attached to it

All of the above

Which of the following pattern of ANA determine Scleroderma

Peripheral Pattern

Homogenous Pattern

Speckled Pattern

Nucleolar Pattern

All of the following are NOT TRUE regarding Latex Particle Agglutination Immunoassay EXCEPT

It is a quantitative, qualitative and semiquantitative type of immunoassay

Positive result in having RF is when the value of agglutination is >6mg/L

It is used to detect HCG, Plasma proteins and Rheumatoid Factor

All of the above

It has limitations such as it is positive when a patient has TB and Infectious mononucleosis

You suspect that your patient is infected with Pneumococcus what is/are the method can be used to determine the presence of C Reactive protein

Latex particle Agglutination Immuno assay

Radial Immunodiffusion

Westergren method

Serial dilutions

You suspect of patient having SLE and presented with glomerulonephritis having a decreased C3 what method should be used

Radial Immunodiffusion

Modified precipitin ImmunoAssay

Both

Neither

True of Immunohistochemical technique Except

Used fluorescent dye or immunoperoxidase

It is for specific tumor markers and it detects origin of metastasis

It requires secondary enzyme conjugates antibody

None

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