What is the role of lab testing in the diagnosis of frozen shoulder syndrome (FSS) (adhesive capsulitis)?

Updated: Nov 12, 2020
  • Author: Jefferson R Roberts, MD; Chief Editor: S Ashfaq Hasan, MD  more...
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Laboratory studies rarely are required for the evaluation of adhesive capsulitis. However, if a predisposing medical condition that may be contributing to adhesive capsulitis is suggested, the following tests may be ordered:

  • Complete blood cell count (CBC)
  • Erythrocyte sedimentation rate (ESR)
  • C-reactive protein (CRP)
  • Blood glucose
  • Hemoglobin A1c
  • Thyroid-stimulating hormone (TSH)
  • Free thyroxine index (FTI)
  • Free thyroxine (FT4)

Although an orthopedic surgeon may order these tests, results should be forwarded to the patient's primary care physician for further evaluation.

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