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Diagnostic Tests for Finger numbness

Diagnostic Test list for Finger numbness:

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

  • General appearance - abnormal posture, muscle wasting, abnormal arm movements.
  • Physical examination
    • May be necessary to examine a variety of joints including the cervical spine, shoulder, elbow , wrists and the various joints of the hand
    • Test muscle tone, power, reflexes and co-ordination of upper limbs
    • Test sensation of upper limbs ( including pain , touch , temperature and vibration sensation)
    • Determine the extent and limit of the finger numbness
    • Examine and test each nerve of the upper limb (including radial , median, ulnar nerve and also brachial plexus)
    • Examination of cranial nerves ( if also affected would suggest a diagnosis of cerebrovascular disease , a mass in the brain, migraine or multiple sclerosis)
    • Examination of the lower limbs
    • Examine for reduced or absent peripheral pulses, cool peripheries, absence of hairs on peripheries to diagnose peripheral vascular disease
    • Examine for finger tip ulcers which may be a complication of Raynaud's disease or frostbite
    • Examine for any signs of rheumatoid arthritis, lupus erythematosus, systemic sclerosis, polyarteritis nodosa, Buerger's disease, polycythaemia, leukemia, polymyositis , dermatomyositis that may cause Raynaud's phenomenon
  • Blood tests
    • Full blood count, ESR, Electrolytes
    • Blood sugar to detect diabetes which can cause peripheral neuropathy and peripheral nerve lesions
    • Rheumatoid factor, ANA antibodies, ENA antibodies, dsDNA antibodies, antinuclear and anticentromere antibodies to diagnose possible causes of Raynaud's phenomenon
    • Thyroid function tests to diagnose hypothyroidism ( can cause carpal tunnel syndrome)
    • Vitamin B12, intrinsic factor antibodies (looking for pernicious anemia)
    • Syphilis antibody test if indicated
  • Radiology investigations
    • Neck X-ray (look for cervical rib which may cause thoracic outlet syndrome
    • Upper Thoracic spine X-Ray
    • Elbow , forearm, Shoulder X-ray
    • Wrist and Hand X-Ray
    • CT Scan or MRI of Cervical spine if nil numbness of the face or cranial nerve signs - can detect nerve root entrapment in the intervertebral foramina of the cervical spine or a disc prolapse.
    • CT Brain if also numbness of the face or cranial nerve signs to detect cerebrovascular disease , mass in brain
    • MRI Brain and Spinal cord to detect multiple sclerosis
  • Nerve Conduction studies - may assist in diagnosing Guillain-Barre syndrome.
  • Electromyography - to diagnose entrapment syndromes of peripheral nerves.
  • Spinal tap - to help diagnose Multiple sclerosis.

Home Diagnostic Testing

These home medical tests may be relevant to Finger numbness causes:

Conditions listing medical symptoms: Finger numbness:

The following list of conditions have 'Finger numbness' or similar listed as a symptom in our database. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.

Select from the following alphabetical view of conditions which include a symptom of Finger numbness or choose View All.

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