Vibration syndrome is characterized by what change in the fingers?

Vibration syndrome is characterized by what change in the fingers?

• A. Increased grip strength
• B. Abnormal constriction of blood vessels in the fingers
• C. Rapid growth of nails
• D. Loss of hair on the arm

Answer: (B)

Vibration syndrome involves a vasospastic reaction in the fingers from chronic hand‑arm vibration exposure. The defining change is abnormal constriction of the digital blood vessels, which can cause blanching, numbness, and cold sensitivity in the fingers (the white finger phenomenon). This vasospasm is driven by heightened sympathetic activity in response to vibration and cold. Because this vascular tightening in the fingers is the characteristic feature, the description of abnormal constriction of blood vessels in the fingers is the best match. The other options don’t fit because vibration syndrome does not cause increased grip strength, rapid nail growth, or hair loss on the arm.

Vibration syndrome involves a vasospastic reaction in the fingers from chronic hand‑arm vibration exposure. The defining change is abnormal constriction of the digital blood vessels, which can cause blanching, numbness, and cold sensitivity in the fingers (the white finger phenomenon). This vasospasm is driven by heightened sympathetic activity in response to vibration and cold. Because this vascular tightening in the fingers is the characteristic feature, the description of abnormal constriction of blood vessels in the fingers is the best match. The other options don’t fit because vibration syndrome does not cause increased grip strength, rapid nail growth, or hair loss on the arm.