Glory, Vortex Street off Baja California NASA Technical Reports Server (NTRS) 2007-01-01. On June 19, 2007, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite captured both a vortex street and a glory visible amid the lattice of clouds over the Pacific Ocean off Baja California. If this were a real test, the lab would not have accepted this sample. The next day, Joe tests taking 10 g of creatinine ethyl ester. 3 hours later, his urine creatinine level is up to 750 mg/dL. He calculates that even with the 8-fold urine dilution, his urine creatinine levels will be well above the 20 mg/dL cutoff.
Obviously correcting reported values to adjust for concentration can make significant changes at times and are important to consider, especially for EtG levels under 20,000ng/ml or so. Variation in amount of EtG produced for a given exposure to alcohol : Some individuals produce more EtG for a given exposure to alcohol than others.