Laboratory parameters of the 1st order – obligatory laboratory tests.
- Urine status/ midstream urine (rapid test for: pH, leukocytes, nitrite, protein, glucose, blood), sediment, if necessary urine culture (pathogen detection and resistogram, that is, testing of suitable antibiotics for sensitivity/resistance).
- Urethral swab (urethral swab) – if urethritis (urethritis) is suspected.
- Syphilis serology
Laboratory parameters 2nd order – 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) or ESR (erythrocyte sedimentation rate).
- Infectious serology
- Epicutaneous test (synonyms: patch test, patch test) – for suspected fixed drug exanthema.
- Biopsy
