Diagnostic Tests for Drooling

Diagnostic Test list for Drooling:

The list of diagnostic tests mentioned in various sources as used in the diagnosis of Drooling includes:

• Physical examination
  • High temperature may suggest epiglottitis or rabies
  • Examine for Kayser-Fleisher rings (brown pigmentation in the periphery of the cornea due to copper deposition)
  • Central nervous system examination, including cranial nerves looking for signs of 7th nerve palsy which may be due to brain stem stroke, brain stem tumor or multiple sclerosis
  • Look for signs of Bell's palsy (7th nerve palsy of unknown cause) e.g. unable to wrinkle forehead or close eye forcefully on affected side, unable to whistle or blow out cheeks
  • If 7th nerve palsy, examine for a blister-like rash on the pharynx or external ear canal that would suggest herpes zoster (shingles) infection of the nerve
• Blood tests
  • Liver function tests (abnormal in Wilson's disease)
  • Copper and caeruloplasmin levels are reduced in Wilson's disease
• Radiological investigations
  • CT Brain stem - if suspect tumor or stroke.
  • X-ray of petrous temporal bone - if history of trauma and have 7th nerve palsy.
• Liver biopsy - if suspect Wilson's disease to detect high copper levels.

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