2nd order laboratory parameters – depending on the results of the history, physical examination, and obligatory laboratory parameters – for differential diagnostic clarification.
- Small blood count
- Inflammatory parameters – CRP (C-reactive protein).
- Hormone diagnostics
- Stage I
- Prolactin*
- Estradiol (E2)
- Progesterone (only in the second half of the cycle).
- LH
- FSH
- TSH
- Stage II
- TRH-TSH test
- Prolactin stimulation test with MCP
- Stage I
- Smear – cytological diagnostics (in the case of purulent secretion also microbiological diagnostics).
- Pregnancy test (quantitative HCG).
Notice. * Values above 200 ng/ml (= μg/L) are almost always conclusive for prolactinoma; elevated prolactin levels up to 200 ng/ml may be due to a microadenoma, among other causes.
