Which investigations are recommended to confirm a diagnosis of essential tremor

In a primary care setting, to confirm a diagnosis of essential tremor, the recommended investigations include reviewing the patient's regular medication, checking thyroid function, and assessing alcohol consumption using a tool such as the Alcohol Use Disorders Identification Test (AUDIT). These steps help exclude other causes of tremor. No routine neuroimaging or specialist tests are required initially. Referral for neurological assessment is advised only if the tremor symptoms are disabling and first-line treatment is ineffective or not tolerated. Additionally, consider referral to a movement disorder clinic if the patient has troublesome head tremor.