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Suzy asked...

Optic neuritis

I was recently admitted for treatment for optic neuritis, on admission they took several tubes of blood for testing. What do they test for? I only had feedback on one test which was repeated (raised drvvt ratio).

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The answer

Optic neuritis is typically diagnosed  by the symptoms and features that are present. When  the disease process that is causing the optic neuritis is sought, and there are uncommon symptoms which make the diagnosis difficult  then then  blood tests may be performed for the following  medical conditions. In this instance Suzy, you would need to confirm with your treating clinician what blood tests have been requested and for what reason.

There are a number of conditions that can cause optic neuritis  and all of them require specific blood tests, these include: 

  • Vitamin B12 deficiency
  • infections 
  • inflammatory conditions
  • ischaemic optic neuropathies
  • auto-immune diseases
  • drugs
  • toxins 
  • inherited conditions.

Answered by the Health at Hand nurses  

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