What does it mean when the oil light comes on?   The oil light in a car indicates a lack of oil pressure. Typically this means that your motor oil level is low. It can also indicate a leak--head gasket or a cracked engâ¦ine block are two of the most common sources.
The kidneys maintain the blood creatinine in a normal range. Creatinine has been found to be a fairly reliable indicator of kidney function. Elevated creatinine level signifies impaired kidney function or kidney disease. As the kidneys become impaired for any reason, the creatinine level in the blood will rise due to poor clearance of creatinine by the kidneys. Abnormally high levels of creatinine thus warn of possible malfunction or failure of the kidneys.
Causes Of Elevated BUN and Creatinine Levels: There are many causes of elevated BUN and Creatinine levels, including: 1  There may be a blockage of blood flow to or from the kidney.2  You may be dehydrated. 3  A urinary infection, or nephritis (inflammation of one or more of your kidneys). 4  Drug toxicity-risk for kidney problems may be from: 5  Chemotherapy drugs such as: Cisplatin, Carboplatin, ... 6  Bioloephrotoxicity can be temporary with a temporary elevation of lab values (BUN and/or creatinine). If these levels are elevated, these may be due to a temporary condition such as dehydration or you may be developing renal (kidney failure).