Lab Experiment 8A

Question 0

Rheumatoid factors are __________ group of high molecular weight ___ molecules directed against the patient’s own ____________.

Answer 0

Heterogenous; IgM; Immunoglobulin

Question 1

Title of Experiment

Answer 1

Rh (Rheumatoid factor) Latex Test

Question 2

The test may also be used for the presumptive disgnosis of?

Answer 2

Rheumatoid arthritis

Question 3

Principle: The latex RF reagent is a suspension of polystyrene latex particles of uniform size coated with human ____________.

Answer 3

Immunooglobulin

Question 4

If the Rh factor is present in serum and reacts with the IgG coated to the latex particles, what will form in between?

Answer 4

Formation of a web between them

Question 5

Positive reaction for Qualitative test

Answer 5

Presence of agglutination which indicates a rheumatoid factor content in the serum equal or greater than 10 IU/ml

Question 6

Negative reaction for Qualitative test

Answer 6

Absence of agglutination which indicates a rheumatoid factor content in the serum of less than 10 IU/ml

Question 7

Titer for Semi-quantitative reaction

Answer 7

The approximate titer will correspond to the highest serum dilution that still presents a clearly visible agglutination