A14. Examination of the sensation

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  • Compare both sides
  • Show and tell the patient about the examination before you perform it with their eyes closed
  • Examination of fine touch
    • Pathway: dorsal column
    • Procedure
      • Ask patient to close their eyes
      • Touch patient softly with finger or cotton pad
      • Tell patient to tell you when they feel it
    • Positive:
      • Hypoesthesia: decreased sensation
      • Anaesthesia: no sensation
      • Allodynia: painful sensation for a non-painful stimulus
  • Examination of vibration
    • Pathway: dorsal column
    • Procedure
      • Hit a tuning fork and place it on the patient’s forehead, so they have a reference
      • Ask patient to close their eyes
      • Hit the fork again and place it on a bony prominence in the area to be examined
    • Positive:
      • Decreased or absence of vibration sensation
  • Examination of proprioception (joint position)
    • Pathway: dorsal column
    • Procedure
      • Ask patient to close their eyes
      • Hold the patient’s hallux
      • Move the distal joint up and down randomly, and ask the patient at random times to identify the change in position
      • Perform the same movement for the 4th finger
    • Positive:
      • Decreased or absence of joint movement sensation
    • Note: Joint position sense is extremely sensitive, so even small movements can be felt by the patient
  • Examination of pain sensation
    • Pathway: spinothalamic tract
    • Procedure
      • Ask patient to close their eyes
      • Prick the patient’s skin with a pointed object
    • Positive
      • Analgesia: No pain sensation
      • Hypoalgesia: Decreased pain sensation
      • Hyperalgesia: Increased pain sensation