Why do blood test cost so much?

Aren't they routine in copious instances? How much would the following cost: SGPT, SGOT, Alkphos, Bill Rubin?
I need these for a governing body job and in a minute I don't have insurance.Why do blood test cost so much?
clinic-ordered test are more expensive because you're paying the overhead on your doctor's office.
The doctor (or nurse) draws the blood for a example, the samples are handle by the doctor's staff, picked up by a courier, delivered to the lab, and a technician does the actual trialling...and all of these expenses are passed on to you the lenient.
To save up to 80% on your test, go directly to the lab...Local conducting tests labs are in the yellowpages, and various will draw and test on-site.
To stockpile up to 40% over the GPs office drop by, choose a doctor with an department in the local hospital center (they most imagined test in-house) and hold the visit billed...this give you up to 30 days to make salary on the balance of the test (the visit will obligation to be paid up front, of course).
Don't rule jobs come beside insurance??

social security tax