Table 2. Electromyography done on day 2 of illness.

PSW: positive sharp waves

Muscles	Insertional activity	Spontaneous activity			Motor unit potentials
		Fibrillation	Fasciculation	PSW
Right biceps	Normal	Absent	Absent	Absent	Normal motor unit potential, amplitude, morphology, and duration. Normal recruitment pattern
Right first dorsal interosseous	Normal	Absent	Absent	Absent	Normal motor unit potential, amplitude, morphology, and duration. Normal recruitment pattern
Right gastrocnemius (medial)	Normal	Absent	Absent	Absent	Normal motor unit potential, amplitude, morphology, and duration. Normal recruitment pattern
Right rectus femoris	Normal	Absent	Absent	Absent	Reduced recruitment pattern