Tremor Scale (symptomatic complaint of tremor in any part of the body)
| 0 == |
Absent (no tremor or writing impairment) |
| 1 == |
Slight and infrequently present (mild tremor, writing, and drawing of spiral minimally impaired) |
| 2 == |
Moderate; bothersome to most patients (writing and drawing of spiral moderately impaired) |
| 3 == |
Severe tremor (writing and drawing severely impaired; interferes with many activities such as drinking liquids) |
| 4 == |
Marked tremor (interferes with most activities) |
Once a diagnosis of ET is established, studies may be performed to rule out preexisting conditions that may also produce tremor (e.g., hypothyroidism, drug-induced tremor, Wilson's disease, lesions of the cerebellum or midbrain, peripheral neuropathy, traumatic injury, etc.). Other tremor-associated disorders include acute and chronic polyneuropathy; hereditary motor and sensory neuropathies such as Charcot-Marie-Tooth disease; Guillain-Barré syndrome; metabolic neuropathies (e.g., Refsum syndrome, etc.); and peripheral nerve entrapment syndromes.
