I think the test you had was a ck. creatine kinase. This is not a kidney test. It is an indirect test that shows muscle breakdown. It is specific for certain muscle for instance we use CK along wit Tropinin to evaluate heart muscle injury working up chest pain. In your case they used ck as a trend for skeletal muscle breakdown to rule out an illness called Rhabdomyolisis. Rhabdo occurs when people have severe skeletal muscle injury thus releasing CK and thus can cause Renal injury because your kidney has trouble filtering out this large molecule. Treatment is aggressive hydration and rest. Your Ck bein 1200 was quite elevated I would rest and pound fluids since your renal function is fine and don't lift for a couple days. I'm assuming you had some symptoms like muscle pain or severe cramping correct? I do not think it was from gear per say but you maybe over traing ... Remember We should Stimulate muscle not destroy it to make it grow.

My creatinine hovers at 1.6. My dr freaked out. I got referred to a urologist who then freaked out and sent me to kidney doc. The kidney doc literally walked in, looked at me and said "youre fine." She said I was carrying significant muscle mass and there was no reason to even test me again.

Never heard of this one bro. Interesting. In plain old blood tests, muscle breakdown shows up in a renal function panel that shows your creatinine level. Creatinine is a byproduct of muscle breakdown and it is supposed to be cleared to normal range by healthy kidneys. However, anybody who is a strength athlete who is just starting out with intense routines in the gym or a mature bodybuilder who is carrying a great deal of muscle mass will have elevated creatinine levels. A family doctor who is not familiar with this will think the patient is in renal failure and send you to a nephrologist. The issue with creatinine is so common, it is a nice "tell" on a blood test. When I look at the labs submitted on eroids, if the creatinine level is normal, that tells me a couple of things. The guy doesn't have any muscle on to speak of (doesn't matter what fake picture he submits, the blood test doesn't lie) or the guy is just starting out in the gym and has no intensity in his workouts. Just some interesting trivia. There are other "tells" on the blood test too about diet and such and of course indicators that show the effects of the steroids themselves.