Cyclosporine Level C-0 / HPLC, Whole EDTA is a test used to determine the level of cyclosporine in the blood at the C-0 time point, meaning just before the next dose is administered. This analysis relies on high-performance liquid chromatography (HPLC) to obtain accurate measurements of cyclosporine levels. Cyclosporine is an immunosuppressive drug commonly used in organ transplant patients to prevent graft rejection. Monitoring cyclosporine levels is essential to ensure treatment effectiveness and avoid potential toxicity. This test helps physicians appropriately adjust dosages based on the patient’s response and treatment needs. It is recommended to perform this test regularly for patients receiving cyclosporine to ensure safety and treatment success.