11 Causes of Chest Pain. While a heart attack may seem the obvious cause of chest pains, there are also a number of other conditions that can bring about tightening of the chest and chest pains. Among these problems may be caused by an individualâs, lungs, gastrointestinal tract, esophagus, muscles, ribs and even nerves.
Normal levels of creatinine in the blood are approximately 0.6 to 1.2 milligrams (mg) per deciliter (dL) in adult males and 0.5 to 1.1 milligrams per deciliter in adult females.ormal levels of creatinine in the blood are approximately 0.6 to 1.2 milligrams (mg) per deciliter (dL) in adult males and 0.5 to 1.1 milligrams per deciliter in adult females.
Hyperbolic Relationship between GFR and Serum [creatinine] In this graph of serum creatinine concentration as a function of GFR we see that at a normal GFR of 120 ml/min the serum creatinine concentration is 1 mg/dL. -If GFR falls to 60 ml/min the serum creatinine concentration increases to 2 mg/dL.