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NEUROLOGY INVESTIGATIONS: TIBIAL MOTOR CONDUCTION STUDY

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Oct 16, 2008. TIBIAL MOTOR CONDUCTION STUDY. Tibial motor conduction study is performed by placing active electrode at abductor hallucis brevis (AH) muscle, reference electrode at metatarsophalangeal joint of great toe and ground electrode b/w stimulator and active electrode. Tibial nerve is stimulated behind medial malleolus and in popliteal fossa. Stimulation of nerve in popliteal fossa is difficult because nerve is lying deep in the fossa. Anatomy of Tibial Nerve. Routine Nerve Conduction Study.

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NEUROLOGY INVESTIGATIONS: MOTOR CONDUCTION STUDIES - PARAMETERS

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Sep 15, 2008. MOTOR CONDUCTION STUDIES - PARAMETERS. When a motor or mixed nerve is stimulated and recording is made by placing electrodes over a muscle supplied by that nerve, the recorded potential is known as compound muscle action potential or CMAP. There are three main parameters of CMAP, which are routinely evaluated during motor nerve conduction studies. They are latency, amplitude and conduction velocity. Prolonged latencies are usually taken as evidence of demyelination. Decreased CMAP amplitude...

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NEUROLOGY INVESTIGATIONS: NERVE CONDUCTION STUDIES - INTRODUCTION

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Sep 2, 2008. NERVE CONDUCTION STUDIES - INTRODUCTION. Clinical electrodiagnostic examination is composed of two main tests: nerve conduction studies and needle electromyography (EMG). Additional electrodiagnostic procedures include F waves, H reflexes, and repetitive nerve stimulation. Nerve conduction studies assess peripheral motor and sensory functions by recording the evoked response to stimulation of peripheral nerves. There are two main types of NCS: motor and sensory. Posted by DR SHAH.

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NEUROLOGY MCQs SOLUTIONS: NEU-IN-DI-NCS-MESBS

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Reduced CMAP amplitude is seen in axonal neuropathy. Features like reduced conduction velocity, increased latency, conduction block, temporal dispersion etc are features of demyelinating neuropathies. TO GO BACK TO THE QUESTION. NEUROLOGY MCQs (HOME PAGE). Picture Window template. Template images by Josh Peterson. Powered by Blogger.

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NEUROLOGY MCQs SOLUTIONS: MENINGITIS / NEU-EM-ET-MES-MESBY

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The most common bacteria causing pyogenic meningitis in adults are pneumococci. TO GO BACK TO THE QUESTION. NEUROLOGY MCQs (HOME PAGE). Picture Window template. Template images by Josh Peterson. Powered by Blogger.

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NEUROLOGY MCQs SOLUTIONS: MYOPATHY / NEU-CO-ET-MYY-MESBW

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The most common type is hypokalemic periodic paralysis, which is a calcium channel disorder. TO GO BACK TO THE QUESTION. NEUROLOGY MCQs (HOME PAGE). Picture Window template. Template images by Josh Peterson. Powered by Blogger.

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NEUROLOGY INVESTIGATIONS: ULNAR MOTOR CONDUCTION STUDY

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Oct 15, 2008. ULNAR MOTOR CONDUCTION STUDY. Ulnar motor conduction study is performed by placing active electrode at abductor digiti minimi (ADM) muscle, reference electrode about 3 cm distal to active electrode and ground electrode b/w stimulator and active electrode. Ulnar nerve is stimulated at wrist, below elbow and above elbow. This is because elbow is a common site of nerve damage, thus identifying any evidence of. Anatomy of Ulnar Nerve. Routine Nerve Conduction Study. MNCS – Parameters.

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NEUROLOGY INVESTIGATIONS: MEDIAN SENSORY CONDUCTION STUDY

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Oct 22, 2008. MEDIAN SENSORY CONDUCTION STUDY. Median sensory conduction study (orthodromic) is performed by placing active electrode over the median nerve at wrist, (midline), reference electrode about 3 cm proximal to active electrode and ground electrode b/w stimulator and active electrode. Median nerve is stimulated at the index finger. (See figure). Anatomy of Median Nerve. Routine Nerve Conduction Study. SNCS – Parameters. Recording Electrodes-For Sensory Studies. Posted by DR SHAH.

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NEUROLOGY INVESTIGATIONS: RECORDING ELECTRODES - FOR SENSORY STUDIES

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Sep 15, 2008. RECORDING ELECTRODES - FOR SENSORY STUDIES. The arrangement of active (G1) electrode, reference electrode (G2), and ground electrodes follows the same principle as in motor conduction, except that, in place of muscle, G1 and G2 electrodes are placed over the sensory nerves. Sensory nerves are evaluated by stimulating a nerve while recording from the same nerve at a different site. Posted by DR SHAH. Labels: NERVE CONDUCTION STUDIES. Subscribe to: Post Comments (Atom).