1. At which level is lumbar puncture usually performed?: a) L1-L2; b) L2-L3; c) L4-L5
2. Point the contraindications to lumbar puncture: a) meningitis; b) spinal cord tumors; c) brain edema with tentorial herniation; d) subarachnoid hemorrhage
3. Electroencephalography registers: a) Electric activity of brain; b) tone of cerebral vessels; c) biochemical processes in brain; d) liquor circulation
4. Point the main method for liquor research: a) EEG; b) computed tomography; c) magnetic resonance imaging; d) lumbar puncture
5. Point the contraindications to MRI: a) meningitis; b) spinal cord tumors; c) brain edema with tentorial herniation; d) subarachnoid hemorrhage; e) some kind of metallic objects in the body.
6. Describe the pathological changes on the CT scan.