Is there any benefit to checking serum viscosity in patients with autoimmune disease and headaches/migraines to see if aspirin or clopidogrel may be beneficial?

The serum viscosity test measures the time required for the serum to flow through a calibrated capillary tube under controlled pressure. Clinically significant elevations in viscosity (≥2.5 centipoise, normal range 1.4 - 1.8 cP) can cause symptoms and are most commonly seen in hyperviscosity syndrom...