Cardiac disease is the world's leading cause of death. Cardiac Disease's pathogenesis is largely attributed to cholesterol, predominantly carried by low-density lipoproteins (LDL). However, recent research has found that oxidized-LDL is significantly more potent in the initiation and development of atherosclerosis. Tests for both cholesterol and ox-LDL tests are lab-based and expensive. With every third American at risk for Cardiac Disease, this invention discloses an on-site, ultra-low cost, rapid diagnostic test. The diagnostic test disclosed will enable a holistic assessment of Cardiac Disease risk. Furthermore, portability and ultra low-cost of the test put vital health data in the hands of patients and doctors. Additionally, the inkjet printing system disclosed can be used to mass produce the test strips on demand.