An Erythrocyte Sedimentation Rate (ESR) test can study inflammatory conditions such as rheumatoid, systemic lupus erythematosus and arthritis. The test may also be ordered in cause a person is suffering from high fever, some kind of muscle problems or arthritis.
This test is often performed to determine the underlying cause of abnormal thyroid hormone levels. It’s also used to screen for an underactive or overactive thyroid gland. It is ordered in cases of hypo- or hyper-thyroidism, hashimoto’s disease, grave’s disease or autoimmune thyroid condition.