However, how to lower BUN and creatinine level naturally? Both BUN and creatinine are metabolic waste products, and the healthy kidneys keep them range at a normal level. If kidneys canât play their job optimally, excess creatinine and blood urea nitrogen will build up in the body. Clinically, 5.0mg/dl of creatinine and 60mg/dl of BUN are two indicators of renal failure.
Your provider may also check your TSH level if you are planning to get pregnant. Normal values range from 0.4 to 4.0 milli-international units per liter (mIU/L). 1  TSH values can vary during the day. It is best to have the test early in the morning.  Experts do not fully agree on what the upper number should be. Opinions vary from 2.5 to 4.0 mIU/L.
1 A TSH level count ranging between 0.5 and 3mIU/L confirms thyroid disorder. 2  The normal TSH range for newborns ranges from between 1 â 39 mIU/L. 3  The normal TSH levels for children ranges from between 0.7 â 6.4 mIU/L. The TSH narrows to 0.6 to 5.5 micro units per milliliter in school going children. 2  The normal TSH level gradually decreases in children; however, the free thyroid hormone (T4) levels in the blood will be relatively balanced for certain period.