Buy general health tests to measure your overall wellness through lab work and select biomarkers. Quest also offers tests to help assess your risk for certain diseases or medical conditions. After you buy your own test and schedule an appointment online, visit your nearby Quest Diagnostics location to complete your specimen sample collection for your general health blood tests. Your lab results will be shared online as soon as they’re available. As part of your purchase, you have the option to discuss your results with an independent physician.