In the US there are surprisingly few barriers to this, an extreme rarity in our healthcare system. https://questdirect.questdiagnostics.com/ https://questdirec

In the US there are surprisingly few barriers to this, an extreme rarity in our healthcare system. https://questdirect.questdiagnostics.com/ https://questdirect.questdiagnostics.com/ https://www.walkinlab.com/ https://www.walkinlab.com/ https://requestatest.com/how-it-works https://requestatest.com/how-it-works https://www.healthonelabs.com/ https://www.healthonelabs.com/ https://www.directlabs.com/ https://www.directlabs.com/ I have no affiliation with any of the above, they were just the first to pop up on Google (there are plenty more).