Which disease is most commonly associated with rest tremor and slow movement in older adults?

Which disease is most commonly associated with rest tremor and slow movement in older adults?

• A. Alzheimer's disease
• B. Parkinson's disease
• C. Multiple sclerosis
• D. Stroke

Answer: (B)

Rest tremor with slow movement points to Parkinson's disease. In Parkinson's, loss of dopamine-producing neurons in the substantia nigra disrupts the nigrostriatal pathways that regulate movement, tipping the basal ganglia circuits toward reduced movement. This causes a tremor that is most evident when the limb is at rest and often described as a pill-rolling tremor, along with bradykinesia (slowness of initiating and executing movements) and rigidity, which together contribute to the characteristic shuffling gait. The tremor typically diminishes when you move the limb intentionally. Other neurological conditions present differently: Alzheimer's disease mainly involves progressive memory and cognitive decline; multiple sclerosis features episodes of neurologic dysfunction (such as optic neuritis, sensory or motor symptoms) that vary over time; a stroke causes a sudden, focal deficit corresponding to a specific brain area. The combination of rest tremor and slowed movement is most characteristic of Parkinson's disease.

Rest tremor with slow movement points to Parkinson's disease. In Parkinson's, loss of dopamine-producing neurons in the substantia nigra disrupts the nigrostriatal pathways that regulate movement, tipping the basal ganglia circuits toward reduced movement. This causes a tremor that is most evident when the limb is at rest and often described as a pill-rolling tremor, along with bradykinesia (slowness of initiating and executing movements) and rigidity, which together contribute to the characteristic shuffling gait. The tremor typically diminishes when you move the limb intentionally.

Other neurological conditions present differently: Alzheimer's disease mainly involves progressive memory and cognitive decline; multiple sclerosis features episodes of neurologic dysfunction (such as optic neuritis, sensory or motor symptoms) that vary over time; a stroke causes a sudden, focal deficit corresponding to a specific brain area. The combination of rest tremor and slowed movement is most characteristic of Parkinson's disease.