Which tremor is absent at rest but appears with movement and worsens as the target gets closer?

Study for the Parkinson’s Disease Exam. Engage with detailed flashcards and multiple-choice questions, each offering hints and explanations. Prepare effectively for your exam!

Multiple Choice

Which tremor is absent at rest but appears with movement and worsens as the target gets closer?

Explanation:
The key idea is distinguishing tremors by when they appear during movement. Intention tremor is a kinetic tremor that shows up during voluntary movement and grows as you near the target, due to disruption in cerebellar pathways that coordinate precise movements. It’s typically absent when the limb is at rest, which matches the description of a tremor that appears with movement and worsens as you get closer to the target. Resting tremor, by contrast, is present when the limb is at rest and tends to lessen with movement; that’s not what’s described here. Postural tremor occurs when holding a position against gravity, not specifically during the approach to a target. Oral-facial dyskinesias are involuntary, repetitive facial movements, not tremor.

The key idea is distinguishing tremors by when they appear during movement. Intention tremor is a kinetic tremor that shows up during voluntary movement and grows as you near the target, due to disruption in cerebellar pathways that coordinate precise movements. It’s typically absent when the limb is at rest, which matches the description of a tremor that appears with movement and worsens as you get closer to the target.

Resting tremor, by contrast, is present when the limb is at rest and tends to lessen with movement; that’s not what’s described here. Postural tremor occurs when holding a position against gravity, not specifically during the approach to a target. Oral-facial dyskinesias are involuntary, repetitive facial movements, not tremor.

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