Arizona radiation infected with radiation radiation unexpectedly underwent eruptive treatment without the cancer remedies of patients.
The Phoenix-based Mayo Clinic reported that more pollutants were contaminated, the crematorium operator had also discovered that its material had a detectable amount of radioactive material, but that another isotope was found recently to find a cancer patient. Doctors published findings on Tuesday JAMA letter of investigation
While radiation that was detected by the radiation detected in the Krematorium and the operator was hardly damaging, the doctors said that the problem needs more attention. End:
More studies are needed on the frequency and expiration of radiation pollution in American creams to analyze the long-term effects of employee recruitment, especially when the cream rate is higher than 50% in 2017.
There is also no federal regulations on the radioactive material of the krematorium, and the existing rules vary. In Arizona, for example, today, doctors do not have the presence of chronically infected creams about the presence of deceased patients. Florida, on the other hand, prohibits the burning of radioactive creams unless authorized by the government.
The problem was that a 69-year-old man who was devoted to Arizona physicians was struggling to fight a pancreatic tumor after a few days after receiving a nuclear medicine treatment. The doctors treated 193.6 mCi Lu 177 in lutetium, with a life of 6.65 days. After the treatment, the man presented in another hospital is a low blood pressure. He died unexpectedly two days later, after an illness following an illness, and then incubated, a radioactive treatment five days later.
Doctors did not immediately notify the men that they were treated with radiography. When they found out, they informed about cremation and investigated possible contamination. But at that moment it was a whole month since the cancer patient received radioactive therapy.
The researchers found the lutetium Lu 177 contamination in the equipment of the cremator, oven, bone crusher and vacuum filter, with a maximum exposure time of 7.5 mR with Geiger-Mueller detector directly. For practice, it becomes an equivalent dosage of .0075 rems per hour. Occupational Health and Safety United States Occupational Health Administration is the entire limit of exposure within 5 years, and the Agriculture Regulatory Committee is responsible for the annual maximum annual public exposure limit of 0.1 rems per year.
When the researchers demonstrated in the urinary tract, they did not find a lutetium Lu 177. But technician Tc 99m traces were discovered and a radiographic tracer used in the diagnostic tests (six half-hour duration) was discovered. The operator did not do any testing, however.
After a short half-life of two isotopes, doctors of the Mayo Clinic do not think that unexpected creams only affect the NRC's public limit. But, they say, in this case, "postmortem security is a special and often excluded challenge".
JAMA, 2018. DOI: 10.1001 / jama.2018.21673 (about DOI).