When evaluating complications potentially related to dialyzer reuse, which of the following principles must be...

Water with a level greater than 200 CFU gram-negative bacteria may have a high endotoxin level.

Endotoxin diffusion from backfiltration might occur with high-flux dialyzers.

Endotoxins may be killed by disinfectants used in dialyzer reuse.

Endotoxins are best removed by ultraviolet light.