FLD is usually measured with swell test in rigid die. The tested FLD is good fit that one measured by analogue computer in ASAME (Automated Strain Analysis and measure Environment).

A blood test confirmed that she had an advanced case of Grave's disease, an autoimmune disorder that causes the thyroid gland to swell and produce too much of the powerful hormone.

The test results show that linear relationships exist between swell and water as well as the logarithm of swell and the logarithm of pressure.