Special precautions can be taken to greatly reduce the possibility of internalizing radioactive material. To prevent ingestion of radioactive material no eating, drinking, smoking or application of cosmetics is allowed in areas where radioactive materials are used. No food can be stored in refrigerators where radioactive material is also stored. Also, to protect against ingestion, pipetting by mouth is prohibited. During iodination charcoal masks and personal air monitors should be worn by persons performing the iodination.
Technique is checked by use of thyroid bioassay before and after the procedure.
To prevent against absorption of radioactive material, proper use of protective clothing is necessary. Lab coats, disposable gloves and protective eyewear should be worn at all times while working with radioactive material. Protective clothing should be removed and hands should be washed carefully before leaving the laboratory. Laboratory Surveys and Instrumentation One of the best methods for protection against internal and external exposure is the lab survey. If performed correctly, the survey can detect areas of contamination which could be sources of exposure.