​Diagnosing Essential Tremor involves reviewing your medical history, family history and symptoms and conducting a physical examination.

Doctors don’t understand the true cause of ET processed through the thalamus. The thalamus is a structure deep in the brain that coordinates and controls muscle activity. While the diagnosis of ET remains a visual one, certain brain scans, such as Magnetic Resonance Imaging (MRI) and Computerized Tomography (CT), may be helpful in eliminating any other conditions that also produce tremor as a symptom. For example, growths such as tumors or damage to the brain can be seen on certain brain scans. Blood samples may also be taken to rule out thyroid or copper metabolism problems, both of which can cause tremor. DATScan a diagnostic test can distinguish between ET and tremor of Parkinson's disease.

​There is currently no diagnostic test available to identify ET. The diagnosis is usually based upon the symptoms and clinical exam, as well as the absence of other findings that could explain the tremors.  To do this, your health care provider may suggest the following tests: Your doctor can usually diagnose ET based on your explanation of the tremor and an examination. The doctor needs to make sure that no other conditions are present that cause tremors. In some cases, this may mean you need tests to rule out other conditions. For example, blood tests or a brain scan. You may also be referred to a movement disorder doctor (a doctor with a special interest and expertise in the brain and nerves).

The main symptoms of essential tremor include:

• Shaking for periods of time that you can’t control
• Shaking voice
• Tremoring head
• Tremors that get worse during emotional stress
• Tremors that get worse when you move on purpose
• Tremors that lessen with rest
• Balance problems 

Many other factors or diseases can also cause tremors, including Parkinson's disease, multiple sclerosis, fatigue after exercise, extreme emotional distress, brain tumors, some prescription drugs, metabolic problems, and alcohol or drug withdrawal.

Other conditions that can cause tremor and need to be ruled out include a side effect from some prescribed medicines, anxiety, caffeine, some poisons, kidney disease, liver disease, thyroid disease, Parkinson's disease, and other movement disorders.

Genes cause ET in half of all people with the condition.
Someone who has ET will have up to a 50% chance of passing down the responsible gene to their child, but the child may never have symptoms. Although ET is more common in older people -- and symptoms become more serious with age -- it is not a part of the natural aging process.
​
What tests may be done to diagnose essential tremor?
When your healthcare provider suspects essential tremor, they may need to rule out other conditions.
The most common and likely tests that help rule out other conditions include:

• Blood tests (these can help rule out conditions that look like ET, especially thyroid conditions, Wilson’s disease and toxic exposure to metals like lead or manganese).
• Computerized tomography (CT) scan.
• Genetic testing.
• Magnetic resonance imaging (MRI).
• Positron emission tomography (PET) scan.

Neurological examination:
In a neurological examination, your doctor tests your nervous system functioning, including checking your:

• Tendon reflexes
• Muscle strength and tone
• Ability to feel certain sensations
• Posture and coordination
• Gait

Laboratory tests:
Your blood and urine may be tested for several factors, including:

• Thyroid disease
• Metabolic problems
• Drug side effects
• Levels of chemicals that may cause tremor

Performance tests:

• Drink from a glass
• Hold your arms outstretched
• Write
• Draw a spiral

If your doctor is still unsure whether your tremor is essential tremor or Parkinson's disease, they might order a dopamine transporter scan. This scan can help your physician distinguish between the two types of tremor.


​Essential tremor may be associated with other illnesses. 
Some reports have linked ET with migraine headaches.
Related Tremors 

There is no cure for essential tremor.

​Beta-adrenergic blockers (principally propranolol) and primidone are the first-line treatment for ET
Medicines 

​https://www.mayoclinic.org/diseases-conditions/essential-tremor/diagnosis-treatment/drc-20350539
​https://www.webmd.com/brain/essential-tremor-basics
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Symptoms * ET & Children * ET Clinical Trials * Causes