tremor screening test preparation

Overview

A tremor is an involuntary, rhythmic shaking movement in one or more parts of the body. It is a symptom, not a disease itself. Screening tests help find the cause of the tremor.

Yes, occasional mild tremors are very common, especially during stress or after caffeine. Persistent tremors that interfere with daily life affect many people worldwide.

Tremors can happen at any age, but they are more common in older adults. Some types, like essential tremor, tend to run in families.

Symptoms

Common symptoms

• Shaking in one or both hands, especially when trying to do fine tasks like writing or holding a cup.
• Rhythmic nodding or shaking of the head.
• Quivering or shaky voice.
• Tremor in the legs or feet.

Symptoms in children

• In children, tremors may be linked to conditions like essential tremor, anxiety, or certain medications.
• Sometimes tremors appear after a high fever or during stress.

Symptoms in older adults

• In older adults, common causes are essential tremor and Parkinson's disease.
• Tremors may worsen with age and affect daily activities like eating or dressing.

Causes

Main causes

• Essential tremor (the most common movement disorder).
• Parkinson's disease.
• Stress, anxiety, or fatigue.
• Caffeine, alcohol withdrawal, or certain medications.
• Overactive thyroid or low blood sugar.
• Damage to parts of the brain that control movement (from stroke, injury, or multiple sclerosis).

Risk factors

• Family history of essential tremor or other movement disorders.
• Increasing age.
• Chronic medical conditions like multiple sclerosis or hyperthyroidism.
• Long-term use of certain medications (e.g., some antidepressants, asthma drugs).

When to see a doctor

See a doctor urgently if:

• If you have a tremor along with sudden confusion, one-sided weakness, or severe headache (possible stroke).
• If the tremor started after a head injury or is accompanied by a high fever.

Book a routine appointment if:

• If the tremor is gradually getting worse and interfering with everyday tasks like writing, eating, or dressing.
• If you have a family history of tremor and want a check-up.
• If the tremor is causing embarrassment or affecting your quality of life.

Diagnosis

A doctor will take a thorough medical history and perform a physical exam. They may ask about when the tremor started, what makes it better or worse, and whether any family members have similar symptoms.

Tests that may be done

• A neurological examination (testing reflexes, strength, coordination, and sensation).
• A tremor assessment (like holding arms out or drawing a spiral).
• Blood tests to check for thyroid problems, low blood sugar, or other causes.
• Imaging tests like an MRI or CT scan of the brain if a structural problem is suspected.

What to expect at your appointment

You may be asked to do simple tasks like pour water or write to show the tremor. Sometimes a video recording is used. For the screening, avoid caffeine for several hours beforehand (unless told otherwise by your doctor). Wear comfortable clothing and bring a list of all medicines you take.

Treatment

Treatment depends on the cause of the tremor. Many tremors can be managed with lifestyle changes or medication. If an underlying condition is found, treating it often improves the tremor.

Self-care at home

• Reduce or avoid caffeine and other stimulants.
• Practice stress-reducing techniques like deep breathing, meditation, or yoga.
• Get enough sleep and rest.
• Use weighted utensils, a heavier cup, or wrist weights to make tasks easier.
• Avoid alcohol or use it very cautiously (alcohol may temporarily reduce some tremors but can worsen others).

Medical treatments

Your doctor may recommend medications that help control tremors. The choice depends on the type and severity of the tremor. Never start or stop any medication without consulting your healthcare provider. Physical or occupational therapy can also teach you ways to manage the tremor in daily activities.

When is surgery considered?

For very severe tremors that do not respond to medication, a procedure called deep brain stimulation (DBS) may be an option. This involves implanting electrodes in the brain to regulate abnormal signals. It is only considered when other treatments have failed.

Living with this condition

Living with a tremor can be challenging, but there are many ways to adapt. Use everyday aids like non-slip mats, button hooks, or speech-to-text software. Plan extra time for tasks, and break them into smaller steps.

Lifestyle tips

• Stay physically active with safe exercises like walking, swimming, or tai chi.
• Maintain a regular sleep routine.
• Avoid triggers like stress, caffeine, and lack of sleep.
• Join a support group to share tips and encouragement.

Diet and exercise

Eat a balanced diet with plenty of fruits, vegetables, and whole grains. A healthy diet can help manage underlying conditions like diabetes or thyroid problems. Exercise improves coordination and reduces stress, which may help control tremors.

Mental health and emotional wellbeing

Tremors can cause frustration, embarrassment, or anxiety. It is normal to feel this way. Talk to your doctor or a counsellor if the tremor affects your mood or social life. You are not alone.

Prevention

Not all tremors can be prevented, especially those with a genetic cause. However, you can lower your risk by managing stress, avoiding excessive caffeine, and staying healthy. If you take medications that cause tremor, your doctor may adjust the dose.

Complications

If left untreated

• Difficulty with daily activities like eating, writing, or dressing.
• Social withdrawal due to embarrassment.
• If the tremor is caused by an underlying condition (like Parkinson's or hyperthyroidism), delaying treatment may make the condition worse.

Long-term outlook

For most people, tremors can be managed effectively. With the right treatment and support, many people continue to lead active, independent lives. The outlook depends on the cause, but it is often good.

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