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.
The reference range for creatinine is 50 to 110 Î¼mol/L (0.8 - 1.4 mg/dl). Men tend to have higher levels of creatinine because they have more skeletal muscle than women. Serum creatinine is not affected by diet or activity level.eadlines: Creatinine is a breakdown product of creatine phosphate in muscle, and is usually produced at a fairly constant rate by the body (depending on muscle mass). It is filtered by the kidney. If the filtering of the kidney is deficient, blood levels rise.