Which of the following are characteristics of generalized tonic-clonic seizures?

Choice A rationale Post-ictal confusion, characterized by a period of disorientation, drowsiness, and potential headache, is a universal feature of the post-seizure state following a generalized tonic-clonic event. This transient neurological deficit reflects the exhaustion and metabolic changes within the cerebral cortex after widespread neuronal depolarization. Choice B rationale Sudden loss of consciousness occurs at the onset of a generalized tonic-clonic seizure due to the abrupt, widespread, and bilateral electrical discharge throughout the cortex. This loss of awareness defines the generalized nature of the seizure, distinguishing it from focal seizures where consciousness may be preserved. Choice C rationale Rhythmic twitching of one extremity while remaining awake and aware describes a focal motor seizure (simple partial), which involves abnormal electrical activity localized to a specific area of one cerebral hemisphere. A generalized tonic-clonic seizure involves both hemispheres and global loss of consciousness. Choice D rationale Urinary incontinence is common during the tonic phase of the seizure due to the intense, generalized muscular contraction, including the pelvic floor muscles. The massive autonomic surge and muscular rigidity overwhelm the sphincter control, leading to involuntary voiding. Choice E rationale Rhythmic muscle twitching, known as the clonic phase, consists of alternating periods of muscular contraction and relaxation. This phase follows the rigid, sustained contraction of the tonic phase and is a defining characteristic of a generalized tonic-clonic seizure.