2nd order laboratory parameters – depending on the results of the history, physical examination and obligatory laboratory parameters – for differential diagnostic clarification.
- Small blood count [anemia/anemia?; MCV ↑ → indication of alcohol abuse/abuse, if any].
- Ferritin serum level (iron stores) – if iron deficiency anemia is suspected.
- Inflammatory parameters – CRP (C-reactive protein) or ESR (erythrocyte sedimentation rate).
- Urine status (rapid test for: glucose).
- Fasting glucose (fasting blood glucose)
- Syphilis serology – if syphilis (lues; venereal disease) is suspected.
- CSF puncture (collection of cerebrospinal fluid by puncture of the spinal canal) for CSF diagnosis – in suspected cases of multiple sclerosis (MS).
- Blood gas analysis (BGA)
- CO hemoglobin (synonyms: CO-Hb, carboxyhemoglobin, carbon monoxide hemoglobin) – due topossible carbon monoxide poisoning.
- Mercury (due topossible intoxication).
- Tetrachloromethane (due topossible intoxication).
