Diluted Urine. Pass or Fail?

[Burnt Toast]

Thanks Burnt Toast! So would it be the lab that tests the sg and creatinine

Yep, the lab will perform the integrity checks as well as the actual drug check.

or would they know immediately and want a retest right away?

Nope. Only the employer can order a retest. The lab MRO just reports the test results to your employer and your employer will go from there.