Does a low creatinine value indicate dilution or attempted flushing of system?
While most patients have creatinine values greater than 20 mg/100ml, values less than that are not uncommon and occur naturally in some people. Low creatinine may not be a concern until it drops below 10 mg/100 ml. Then it is worthwhile to check specific gravity. If the specific gravity is normal (greater than 1.003) the sample is considered to be valid .