Those wishing to take part in mesomark testing will be asked to provide one or more samples of blood. The costs associated with the mesomark blood test may not be covered under health insurance therefore you may be required to pay all or part of the costs out of pocket. Based on the limited amount of data currently available use of this test may be beneficial but effectiveness has not been determined at this time. It is recommended that you check with your insurance carrier to determine whether coverage is available under your policy. . This test has been approved as a humanitarian use device hud meaning that physicians must follow certain procedures to qualify their patients for testing.