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Clinical Neurophysiology exam 1 topics

Clinical Neurophysiology exam 1 topics - SSEP Recording...

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SSEP Recording montages: upper Target Generators G1 G2 I/L Brachial plexus Medial supra clavicular Lateral supra clavicular Midline DCN Cv2 Mastoid or Pz Cortex C/L P4 C/L F4 or M/L Fz SSEP Recording montages: lower Target Generators G1 G2 I/L Lumbar plexus L1 L2 Midline DCN Cv2 Mastoid or Pz Cortex M/L Pz M/L Fz Cortex C/L P4 I/L P3 Peak Amp: 5 microvolts Trials: 128 Stim. Freq: 3.42 Hz Time/epoch: 35 sec SSEP pathway: MCDMVC/TGDMVC Median nerve—cuneate nucleus—DCN—medical lemniscus—VPL—cortex Tibial nerve—gracile nucleus—DCN—medial lemniscus—VPL—cortex Obligate waveforms and latencies: UE: N9 (brachial plexus), N13 (DCN), N18 (thalamocortical projections), N20 (primary somatosensory cortex), P30 (secondary somatsensory cortex), P45 (posterior parietal cortex) LE: N20 (lumbar plexus), P27 (DCN), N35 (thalamocortical projections), P40 (primary somatosensory cortex), N50 (secondary somatosensory cortex), P60 (posterior parietal cortex) VEP Recording montages:
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Target Generators G1 G2 Right occipital lobe O2 Cz Bilateral occipital lobe Oz Cz Left occipital lobe O1 Cz ERG Recording montages: Target Generators G1 G2
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