Which is not a common radioactive tracer?
select the correct answer below:
o
technetium-99
cobalt-60
thallium-201
o
iodine-131

Ithink it’s 3 as the answer.

Ans. : frostbite is when exposure to cold temperatures causes freezing to the skin or other tissues. it most commonly affects the hands, feet, and face. the longer areas are exposed to cold, typically the worse the frostbite. the water temperature used for rewarming a frostbitten part should be : (102 -105) f degrees.