2nd order laboratory parameters – depending on the results of the history, physical examination and obligatory laboratory parameters – for differential diagnostic clarification.
- Urine status (rapid test for: pH, leukocytes, nitrite, protein, glucose, ketone, urobilinogen, bilirubin, blood), sediment.
- Bacteriology/pathogen smear (pathogen determination and resistogram).
- In case of ulceration (ulceration):
- Herpes simplex virus culture
- Dark-field microscopic examination for spirochete (Treponema pallidum); syphilis serology/Treponema pallidum PCR.
- Gonorrhea diagnostics
- Chlamydia diagnostics – for urethritis (inflammation of the urethra).
- Biopsy (tissue sampling) – in unclear diagnosis or prolonged disease.