A lactate level may be useful in differentiating seizures from psychogenic non-epileptic seizures and syncope (sensitivity of 88%, specificity 87% for true seizure activity), 24 while an elevated CK is suggestive of epileptic seizures (specificity 85-100%), but demonstrates variable sensitivity (15-88%).25

 A lactate level may be useful in differentiating seizures from psychogenic non-epileptic seizures and syncope (sensitivity of 88%, specificity 87% for true seizure activity), ²⁴ while an elevated CK is suggestive of epileptic seizures (specificity 85-100%), but demonstrates variable sensitivity (15-88%).²⁵