Question
What are the normal values for neonatal creatine kinase and phosphocreatine isoenzymes? Can vaccines be administered if creatine kinase and isoenzymes are elevated? How should retesting be conducted if needed?
Answer
The normal value for creatine kinase isoenzymes is approximately 0 to 25. Newborns, due to their hypoxic state, may have higher levels. When retesting is required, a venous blood test should be conducted, and it should be done under fasting conditions. Vaccination can be administered once the creatine kinase isoenzyme levels return to the normal range.