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Teste de Eletromiografia

Exames de Imagem aproximadamente CNY 200-500 (aproximadamente USD 30-70) 30 min

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Descrição

O teste de eletromiografia avalia a função dos nervos e músculos em condições como dor ciática, fraqueza muscular ou suspeita de neuropatia, com custo estimado entre 30–70 USD; a ChinaMedicalHub coordena agendamento em hospitais na China.

Principais Usos

Electromyography (EMG) is primarily used to assess the health of muscles and the nerve cells that control them. It is commonly applied in scenarios where there's a need to diagnose: 1. Nerve root injuries or compression, 2. Peripheral neuropathies, 3. Muscular dystrophies, 4. Motor neuron diseases, 5. Disorders of neuromuscular transmission, 6. To differentiate between primary muscle conditions and neurogenic causes of weakness or paralysis

Faixa Normal

The normal range for Electromyography (EMG) varies based on the specific muscle and nerve being tested. Generally, a normal EMG shows no spontaneous electrical activity at rest, with appropriate motor unit action potential (MUAP) amplitudes, durations, and phases during voluntary contraction. The conduction velocity of nerves is also within established norms, typically ranging from 50 to 60 meters per second for upper extremity nerves and slightly lower for lower extremity nerves.

Valores Baixos - Possíveis Causas

Low values or abnormalities in EMG, such as reduced conduction velocities, can be caused by: 1. Peripheral neuropathy, 2. Nerve compression or entrapment, 3. Muscle diseases like myopathy, 4. Inflammatory conditions affecting the nerves, 5. Metabolic disorders impacting nerve function

Valores Altos - Possíveis Causas

High values or abnormal findings in EMG, such as increased spontaneous activity, can indicate: 1. Neuromuscular junction disorders, 2. Denervation due to nerve injury, 3. Myopathies leading to muscle fiber instability, 4. Chronic neurogenic changes, 5. Certain types of muscular dystrophy

aproximadamente CNY 200-500

aproximadamente USD 30-70

Duração: 30 min

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