What do you think, of a freelance business that transports blood samples to labs for testing and then mails the results to the customers? All it would require are a few certifications and skill at Phlebotomy and then you’re in business. Make appointments from home and then get a well outfitted pickup and delivery van worked out.
I honestly think that people are going to end up getting multiple certifications.
My life insurance company sent someone to my house to draw blood, so I’d say it’s being done already.