Thank you for supplying reference values for your lab.
Serum creatinine at my lab is 0.70-1.25, so 0.9 is certainly within normal range. The concern is when it is above 1.30, not below it.
Creatinine kinase (CK) will be up any time there is any inflammation anywhere in the body. That can come from autoimmune disease, excessive exercise that breaks down muscle fibers, a heart attack (the heart is a muscle). It can be high in rhabdomyolisis which sometimes occurs with use of a statin drug. However, you would not likely have this without muscle pain.
Sed rate (ESR) is another marker for inflammation. Like CK it is non-specific, so any increase must be evaluated in conjunction with the clinical picture and other more specific tests to determine what is inflamed.
SGPT is one of the liver enzymes. It is seldom of any concern until it is 2.5-3 times the upper limit of normal. If normal at your lab is 40, then over 100-120 would raise a red flag. At my lab, normal is 9-60 IU/L. It is also not usually the only liver enzyme elevated. Liver damage occurs from any number of different things including excess alcohol, some drugs, hepatitis, etc.
Increased WBC count can come from infections, drug reactions, an autoimmune disorder, allergies, or even anemia. It isn't high enough to be a large cause of concern.
Your medical provider will let you know what additional tests, if any, are required at this time.