Advanced Examination Pearls: Differentiating Essential Tremor from Parkinsonian Tremor | ||
| ESSENTIAL TREMOR | PARKINSONIAN TREMOR | |
|---|---|---|
| Speed | 5-10 Hz | 4-6 Hz |
| Symmetry | Bilateral | Usually asymmetric |
| Most common component | Postural | Rest |
| Other parkinsonian symptoms | Absent | Present |
| Helped with alcohol | Usually | Rarely |
| Family history | Present often | Usually absent |