BUN-to-creatinine ratio - Definition. [ 1 1] Urea and creatinine are nitrogenous end products of metabolism. 2  The normal range of urea nitrogen in blood or serum is 5 to 20 mg/dl, or 1.8 to 7.1 mmol urea per liter. 3  The normal serum creatinine (sCr) varies with the subject's body muscle mass and with the technique used to measure it.
Direct from petco.com: The minimum age for working in our PETCO stores in 18 years, with the exception of Alaska in which the minimum age requirement is 16 years.. Direct from petco.com: The minimum age for working in our PETCO stores in 18 years, with the exception of Alaska in which the minimum age requirement is 16 years..
We finished Petco puppy level 1 and 2 and we liked it. It's not advanced training, but it was nice to work on basics. There were only 2 other puppies in class and all 3 were about the same size (med/large breeds), same age (all about 3 months when we started) and all 3 of us went through 12 weeks together.