What is the definition of a convulsive seizure?

• A. A seizure with no movement
• B. A fainting spell
• C. A seizure characterized by uncontrollable movement of the muscles
• D. A seizure lasting more than 10 minutes

Answer: (C)

A convulsive seizure is defined by uncontrollable muscle contractions, or convulsions, that cause shaking or jerking of the body. This motor activity is the hallmark feature and often comes with a loss of consciousness, though the presence of convulsions is the defining aspect.

This is why the description of uncontrollable muscle movements best fits. A seizure with no movement describes non-convulsive activity rather than convulsions, a fainting spell is not a seizure at all but a brief loss of blood flow to the brain, and a seizure lasting more than 10 minutes refers to duration and urgency (status epilepticus) rather than the defining motor symptoms.