Quest Diagnostics Newsroom - Features Quest diagnostics offers a comprehensive menu of routine and specialty laboratory tests and services. With the consolidated capabilities of our regional laboratories, expanding international presence and the additional esoteric capabilities of Nichols Institute, we are able to offer unequaled convenience in utilizing one laboratory for all diagnostic and prognostic clinical testing needs. <a href="" TARGET="new"></a> <a href="">Global Inclusion & Corporate Social Responsibility Report</a> <a href="">Quest Diagnostics, Inovalon launch on-demand data service</a>