@lily unless you have a fully setup cleanroom lab and the expensive, calibrated equipment to measure, this is unfeasible.

• Mind you there's a big difference between "detecting compounds in the blood" and "measuring precisely how many ng/l are in the blood stream".

There's a reason besides the two hospitals in my 200k hometown there's only 1 lab that processes blood samples 8/5 with only the hospitals having staff on rotation 24/7 to do any analysis as needed in emergencies.

• For context: It'll be cheaper and easier for you to buy a house and an X-ray scanner as an individual than to even DIY hormone level tests with used & surplus'd machines you'd have to refurbish yourself.

That's why #Theranos was such a well-funded #scam: They promised to do all that with tiny mounts of blood in a machine the size of an inkjet desktop printer instead of dozens of spechalized machines the size of an industrial-grade offset print machine that cost 6-8 digits each.
https://youtube.com/watch?v=3CccfnRpPtM

• If it was easy and cheap then the entire medical lab industry would collapse and my GP wouldn't let a courier transport multiple crates of blood vials each week to said lab, but do it inhouse. And they certainly have enough patients and vacant space to have made that calculation themselves.