2nd order laboratory parameters – depending on the results of the history, physical examination and obligatory laboratory parameters – for differential diagnostic clarification.
- Small blood count
- Differential blood count
- Inflammatory parameters – CRP (C-reactive protein) or ESR (erythrocyte sedimentation rate).
- Fasting glucose (fasting blood glucose), if necessary oral glucose tolerance test (oGTT) – in recurrent mycosis (recurrent fungal diseases).
- Infectious serology – for example, if syphilis (lues, venereal disease) is suspected.
- Epicutaneous tests – in this test, a patch is applied to the patient’s skin, which contains various allergens; after two to threedays, the patch can be removed and the test can be evaluated
- Mycological examination (microscopic u. If necessary, cultural) of material from the margins of scaling foci, skin scrapings, nail material, etc. – if a mycosis (fungal disease) is suspected.
- Skin biopsy (tissue removal from the skin) for histology u. Immunohistology – in unclear exanthema (rash) or suspicion of malignancy (malignancy).
