What is the diagnostic role of prolactin levels?
Elevations in serum prolactin occur in the postictal phase (20 to 25 minutes after the seizure subsides) after some types of epileptic seizures. The most consistent increase is found after generalized tonic-clonic convulsions. NESs do not usually raise prolactin levels, although this observation has been disputed. Thus, prolactin levels can be useful in some cases of NES, but they cannot be considered diagnostic. (See more about postictal prolactin testing.