Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

How does “Creatinine” test help with adulteration and quantitation?

April 26, 2017adulteration Creatinine help quantitation Test

0

Posted

How does “Creatinine” test help with adulteration and quantitation?

1 Answer

0

Posted

Creatinine is a normal compound excreted at a constant rate by the kidney into the urine. Creatinine concentration is measured to determine the relative water content of the urine sample. Since the concentration of drugs (e.g. THC metabolite) and creatinine increase or decrease in parallel, dividing the drug concentration/creatinine concentration eliminates water as an unknown. Analysis of this data over time is valuable in assessing continued drug abstinence.