Which lab tests are performed in the workup of trochlear nerve palsy (fourth nerve palsy)?

Updated: Oct 08, 2019
  • Author: Zafar A Sheik, MD, MD; Chief Editor: Andrew G Lee, MD  more...
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General laboratory studies include fasting glucose and HbA1C.

Myasthenia gravis: Anti-acetylcholine receptor antibodies, anti-striated muscle antibody, anti-MuSK antibody, anti-LRP4 antibody

Thyroid eye disease: Free T4, TSH, thyroid receptor antibody, TSH-binding inhibitor immunoglobulin, anti-TPO antibodies

Giant cell arteritis: ESR, CRP, temporal artery biopsy

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