/ Full Body harness
The biggest issue with suspension trauma seems to be squaring the theoretical danger and experimental evidence thereof with the marked lack of serious incidents in practice. Until there is an answer to that one, my vote, in the light of the potential severity, is for caution, thorough risk assessment, careful PPE selection and training for the worst.
Depends on the harness type and construction.
If they are hanging from the dorsal point of a basic fall arrest harness (Petzl Newton) then I would say stand up ...but they might be unconscious, and the blood in the lower legs will have pooled and become toxic, and the legs need to have the continual pressure applied as the harness did and then you have to get the med team to drain the blood and filter it .......one of my doctor friends explained the procedure!
However if they have been hanging from the sternal point in a full harness (Petzl Navaho) then they will be ok by comparison!
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