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Electromyography and Nerve Conduction (EMG) Lab
EMG Lab Services
The EMG Lab provides comprehensive and detailed testing many of which are not available elsewhere. Adult and pediatric patients are welcome at both locations. Services offered include:
- Neuromuscular Consultation – A directed neuromuscular
examination is always performed, and a clinical and electrodiagnosis
is provided. If the referring physician requests further therapeutic
advice, the neuromuscular consultation is an option.
-
Motor nerve conduction studies – provides quantitative information about motor nerve fibers in patients with focal or generalized muscle weakness> Services
- Sensory nerve conduction studies – provides quantitative
information about sensory nerve fibers in patients with focal
or generalized sensory symptoms
- Late responses: F and H responses – provides quantitative
information concerning proximal nerve segments not easily assessed
with motor and sensory nerve studies
- Repetitive nerve stimulation studies – useful in diagnosis
of muscle weakness due to disorders of the neuromuscular junction
(eg. myasthenia gravis, Lambert Eaton myasthenic syndrome)
- Routine qualitative needle electromyography – useful
in assessing the state of the motor unit, and in distinguishing
muscle weakness from peripheral nerve, nerve root or anterior
horn cell diseases from those caused by muscle diseases
- Quantitative electromyography – can be helpful in the
electrodiagnosis of muscle diseases when qualitative needle
electromyography is normal or borderline
- Single Fiber electromyography – helpful in documenting
neuromuscular junction disorders (eg. myasthenia gravis) when
repetitive nerve stimulation is normal
- Quantitative sensory testing – helpful in diagnosis
of subtle sensory dysfunction when sensory conduction studies
are normal
- Skin biopsy - for evaluation of cutaneous sensory unmyelinated
pain fibers in patients with small fiber sensory neuropathy
not detectable on routine nerve conduction studies
- Digital and video photography - documents neurologic findings