"Investigators found [Lu-177] contamination on the crematorium’s equipment, including the oven, bone crusher, and vacuum filter, with a 7.5-mR maximum exposure rate per hour…
[Upon testing] the crematory operator’s urine, they didn’t find any lutetium-177. But they did find trace amounts of technetium Tc 99m, which is a radioactive tracer … used in diagnostic tests. The operator hadn’t had any such tests, though."
https://arstechnica.com/science/2019/02/heres-why-you-shouldnt-cremate-radioactive-dead-people/