What can high concentrations of blood agents cause?

High concentrations of blood agents can lead to seizures because these agents, such as cyanide, interfere with the body's ability to utilize oxygen at the cellular level. When the cells are deprived of oxygen, neurological functions can be severely impacted, leading to symptoms such as seizures.

The physiological effects of blood agents are particularly concerning due to their rapid action and the way they disrupt normal cellular respiration. While other symptoms like fatigue and skin irritations may occur with lower exposures or with different types of agents, the acute neurological impact resulting from high levels of exposure is what primarily leads to the possibility of seizures.