Which type of seizure involves loss of consciousness and jerking movements?

The type of seizure that involves a loss of consciousness and jerking movements is classified as generalized tonic-clonic seizures. During this seizure, the individual first experiences a tonic phase characterized by sustained muscle contractions, which can make them lose consciousness. This is followed by the clonic phase, where there are rhythmic jerking movements of the arms and legs.

Generalized tonic-clonic seizures affect the entire brain from the onset, leading not only to the characteristic muscle activity but also to a significant impact on the individual's level of consciousness, resulting in a temporary loss of awareness during the episode. This distinguishes them from the other types of seizures listed, as they specifically combine these elements of consciousness impairment and jerking movements throughout the body.