The acronym most commonly refers to Radioimmunoassay , a highly sensitive laboratory technique used to measure concentrations of substances like hormones or vitamins. However, depending on the context, it can also represent financial, regulatory, or technical terms. 1. Radioimmunoassay (Science & Medicine)
: Unlike standard brokers, RIAs are legally bound to act in their clients' best interests at all times. R.I.A.()
: They are typically registered with the SEC or state regulators (in the US) or SEBI (in India). The acronym most commonly refers to Radioimmunoassay ,
: It is used for hormone level measurement, drug monitoring (TDM), cancer detection through tumor markers, and allergy testing. Developed in the late 1950s by Solomon Berson
Developed in the late 1950s by Solomon Berson and Rosalyn Yalow, RIA revolutionized medical diagnostics by allowing the measurement of minute quantities of antigens (like insulin) in the blood.