Up country I can usually go to a doctors after hours clinic and they will draw the blood and give me the results in 30 minutes. I would like to go someplace while in Bangkok that has a Good lab facility to get these tests done quickly and hopefully with a reasonable price.

Any hospital can do it. The simplest thing is to just walk into the health screening/check up dept, it is not necessary to purchase check-up packages, you can select tests "a la carte".

These are not expensive tests. Will be least expensive at the smaller private hospitals than the big name ones. Or at the non-profits such as St Louis, Bkk Christian (bith i nthe Silom/Sathorn area) or Camellian (Thonglor).

We paid 170 baht each for those tests in May at Vejthani Hospital (which is not considered especially low priced) as part of routine exam.