1st order laboratory parameters – obligatory laboratory tests.
- Small blood count
- Ferritin (iron stores)
- Differential blood count – for clarification of infections.
- Inflammatory parameters – CRP (C-reactive protein).
- Thyroid parameters TSH (fT3, fT4) – due toexclusion of hypothyroidism (hypothyroidism: > 10.0 μIU/ml) or hyperthyroidism: < 0.10 μIU/ml; euthyroidism: 0.35-4.50 μIU/ml.
- DHEA-S
- Cortisol
- Blood glucose levels – to detect too high or too low levels.
Laboratory parameters 2nd order – depending on the results of the history, physical examination, etc. – for differential diagnostic clarification.
- Infectious serology (Chlamydia pneumoniae, cytomegaly, Epstein-Barr virus infection (EBV; glandular fever, infectious mononucleosis), enteroviruses, Lyme disease, brucellosis, HIV, parvovirus, toxoplasmosis, tuberculosis, cytomegalovirus, CMV).
- Vitamins – vitamin B12, folic acid
- Minerals and trace elements – magnesium; selenium, zinc.
- Test for occult (invisible) blood in the stool.
- Tumor markers – may indicate a tumor disease.
- If necessary, mirror determination of drugs – indicates whether a drug was taken over- or underdosed.
- Human biomonitoring – environmental medical examinations; for example, blood tests for chemical substances such as amalgam or mercury.
