OVERVIEW.

Nelson¹ identifies four CIs for all “traditional electrical evaluation tests,” including reaction of degeneration, strength-duration curve and chronaxie, galvanic twitch-tetanus ratio, nerve excitability nerve conduction, evoked potentials, and electromyography (Also see EMG).

O00-O99 PREGNANCY, CHILDBIRTH, AND PUERPERIUM

OVERVIEW.

Electromyography (EMG) employs intramuscular needle electrodes to assess motor units, including the anterior horn cell, the axon, neuromuscular junction, and all associated muscle fibers.¹

SUMMARY: CONTRAINDICATIONS AND PRECAUTIONS.

Two sources (physician and PT) cited a total of four concerns for EMG that ranged from two to four per source. The greatest proportion of concerns was procedural and related to sterile technique. The most frequently cited concerns were testing patients with bleeding tendencies or with recurrent systemic infection (also see Electrical evaluation tests).