How long do blood test results take? I know I'm being ridiculously impatient, but my mind can't function until I know something. I saw my new PCP on Monday, went into the lab to get my blood drawn on Tuesday, and now...I wait. On one hand, I want everything to come up as normal as possible, but I know something is wrong and I won't be satisfied if the tests show absolutely nothing. I'm being tested for lupus, RA, vitamin deficiencies, and a thyroid condition so I don't know what to expect. I was told my doctor would have the results by Friday, is that normal? Only 3 days?