Project Identifier: LLNL-95-102
Project Title:
Cytogenetic Analyses of X-Ray Technologists
Principle Investigator:
Dr. James D. Tucker
Project started in: 1995
Project Funding Information:
Project received funding in Fiscal Year 1995.
Project used human subjects in Fiscal Year 1995.
Funding Sources:
Project does not involve use of multiple protocols/subprojects.
IRB Review:
Type of Review: Expedited
Most Recent Approval: March 22, 1995
IRB Approval Number: 95-102
Number of Human Subjects in the Last Reporting Period for this Project: 40
(Reporting periods vary.)
Type of Human Subjects Involvement:
Subjects received occupational or accidental radiation exposure only. No radiation was deliberately administered.
The objectives of this work are to: (1) validate the measured radiation doses experienced by radiologic technologists; (2) provide an evaluation of the possible range of exposures experienced by this well-characterized cohort of 143,000 radiological technologists; and (3) provide guidance on estimating radiation doses for pioneering technologists in the 1920s through 1940s for whom dosimeter measurements are not available. Each subject provides a sample of peripheral blood (~3 ml) which is cultured to obtain metaphase cells for cytogenetic analysis. The subjects received occupational exposure to X-rays, but do not receive any radiation or chemical exposure as part of this study. The risks to the subjects are those associated with venipuncture, and include temporary pain, bruising and/or soreness of the affected tissue or surrounding tissue, formation of scar tissue, infection, and fainting.