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.
Normal Levels. Measuring serum creatinine is a simple test, and it is the most commonly used indicator of renal function. Normal reference ranges for serum creatinine are 0.5 to 1.0 mg/dL for women, as cited in the text, âHuman Biochemistry and Disease.â An inactive elderly female may have levels a little less than 0.5 mg/dL. Some substances, such as vitamin C, can alter creatinine levels.