Pathologist Questions Urine Tests

How does a urine test differ from a saliva test?

I have had both a urine and saliva test done recently. How do the 2 produce different results?

1 Answer

Results may differ because urine is basically an excretory product of the body and it may never reflect normal concentrations of body constituents. Saliva and blood are amongst the body fluids and they may reflect the concentrations of these in a better manner.