Seeking Bloodwork Labs with Quick Turn Around Times

I’m in the midst of dealing with an ectopic pregnancy and live in Lubbock. I’ll be in Houston from the 14th-24th and will need to continue getting bloodwork ensuring the treatment is working effectively. I’ve used places like Any Lab Test Now but they sometimes take days for results. Any recommendations for somewhere in town, (downtown adjacent would be great but I know it isn’t likely), that will be quick with results? Looking for 24 hours or less. I can get orders from my doctor’s office as necessary or it can be a book your own spot. Thanks for your help.