2nd order laboratory parameters – depending on the results of the medical history, physical examination, etc. – for differential diagnostic clarification
- Blood count including differential blood count (due tolymphopenia, synonym: lymphocytopenia: describes a decrease in the relative lymphocyte percentage to < 20%, with absolute lymphocyte counts < 1,000/µl. Causes are varied, in burnout syndrome, the reason is the chronically increased cortisol excretion and stress, respectively.
- Cortisol ↑
- DHEAS ↓
- TSH (thyroid stimulating hormone, thyrotropin) – due toexclusion of hypothyroidism (hypothyroidism: > 10.0 μIU/ml).
- Exclusion of chronic fatigue syndrome (CFS).
- 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 (hyperthyroidism; < 0.10 μIU/ml); euthyroid (normal thyroid function): 0.35-4.50 μIU/ml.
- Fasting glucose (fasting blood glucose).
