Erbium is a chemical element in the lanthanide series, with symbol Er and atomic number 68.A silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements on Earth.rbium is a chemical element in the lanthanide series, with symbol Er and atomic number 68.
Many factors may result in elevated creatinine and BUN numbers, but we will only talk about those numbers caused by kidney damage here. So you should make sure you have already been diagnosed with kidney diseases. The normal range of creatinine level for men is 0.6-1.2mg/dl; for women is 0.5-1.1mg/dl. The normal range of BUN numbers for adults is 9-20mg/dl.
A normal level of creatinine depends on how much muscle mass you have. A normal level for a man is higher than it is for a woman. Children have lower levels than both men and women. Creatinine is measured in milligrams per deciliter (mg/dL).reatinine is a normal waste product that builds up in your blood from using your muscles. Your body produces creatinine at a constant rate all the time, and healthy kidneys remove almost all of this creatinine.