It is worrying when someone has a fever of more than 102, a creatinine level of 3.1 and low platelets. This might be due to the body fighting an ailment or possibly signifies a kidney problem. The signs may be having the feeling of nausea, fatigue together with bruises appearing on the skin. To confirm this, one needs to undergo tests done by a specialist who will recommend the appropriate treatment depending on what has brought about these complications.