For these employees, when a holiday falls on a nonworkday -- Saturday or Sunday -- the holiday usually is observed on Monday (if the holiday falls on Sunday) or Friday (if the holiday falls on Saturday).
CK-MB. 1  A creatine kinase-MB (CK-MB) test may be used as a follow-up test to an elevated creatine kinase (CK) in order to determine whether the increase is due to heart damage or skeletal muscle damage.
CK Blood Test. Your doctor may order a creatine kinase test to screen you for any of the conditions that commonly lead to increased CK levels in the blood. MedlinePlus suggests that it is important to inform the doctor about any medications that you might be taking including ampicillin, amphotericin B, aspirin and alcohol.