Radioimmunoassay Flashcards
1
Q
What is a radioisotope?
A
An unstable isotope that emits radiation (alpha, beta, or gamma) to reach a stable state.
2
Q
Which isotopes are gamma emitters?
A
Selenium-75, Iodine-125, and Iodine-131.
2
Q
Which hydrogen isotope is unstable?
A
Tritium (³H).
2
Q
Which isotopes are beta emitters?
A
Tritium (³H) and Carbon-14 (¹⁴C).
3
Q
How are they used in therapy?
A
To treat hemopoietic (blood-forming) tumors.
4
Q
How are radioisotopes used in sterilization?
A
Gamma rays sterilize syringes, sutures, gloves, and medical gowns.
5
Q
Who developed the RIA technique and when?
A
Rosalyn Yalow and Solomon Berson in 1959.
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