Radio Immunoassay

Question 1

First Immunoassay to be developed

Answer 1

Radioimmunoassay

Question 2

In radioimmunoassay what is being used for labelling

Answer 2

Radioisotopes

Question 3

What are the radioisotopes that are used

Answer 3

125 I
131 I
3 H

Question 4

Most commonly used radioisotopes and has 60 days half life

Answer 4

125 I

Question 5

Instrument used to measure radioactivity

Answer 5

Scintillation counter

Question 6

Crystal Scintillation counter

Answer 6

Gamma

Question 7

Liquid scintillation counter

Answer 7

Beta

Question 8

Disadvatange of using radioimmunoassay

Answer 8

Health Hazard
Disposal Problem
Require the use of Expensive Equipment
Short shelf life

Question 9

Application used for measuring Total IgE

Answer 9

RIST
RadioImmunoAbsorbent Test

Question 10

Application used for measuring Allergen-specific IgE

Answer 10

RAST
RadioAllergoAbsorbent Test

Question 11

Radioimmunoassay by which Labeled Antigen competes with Unlabeled antigen of the patient to the limited number of binding sites

Answer 11

Competitive Binding Assays

Question 12

Radioimmunoassay by which analyte to be measured is SANDWICHED BETWEEN 2 ANTIBODIES

Answer 12

Noncompetitive ImmunoRadioMetric Assay (IRMA)