1st order laboratory parameters – obligatory laboratory tests.
- Small blood count
- Inflammatory parameters – CRP (C-reactive protein).
- Urine status (rapid test for: pH, leukocytes, nitrite, protein, glucose, ketone, urobilinogen, bilirubin, blood), sediment, if necessary urine culture (pathogen detection and resistogram, that is, testing suitable antibiotics for sensitivity / resistance).
- Electrolytes – calcium, chloride, potassium, magnesium, sodium, phosphate.
- Fasting glucose (fasting blood glucose).
Laboratory parameters 2nd order – depending on the results of the history, physical examination, etc. – for differential diagnostic clarification.
- Differential blood picture
- Blood gas analysis (ABG)
- Thyroid parameters – TSH, fT3, fT4
- Liver parameters – alanine aminotransferase (ALT, GPT), aspartate aminotransferase (AST, GOT), glutamate dehydrogenase (GLDH) and gamma-glutamyl transferase (gamma-GT, GGT), alkaline phosphatase, bilirubin.
- Renal parameters – urea, creatinine, cystatin C or creatinine clearance, if necessary.
- Cardiac enzymes – creatine kinase (CK), CK-MB (myocardial type of CK), lactate dehydrogenase (LDH) (LDH); troponin T (TnT) – Highly specific is the detection of elevated troponin T and troponin I in blood serum, as these rise early after infarction. These are commercially available as rapid tests, so many hospitals use them as routine markers for infarct diagnosis.
- D-dimers (end product of proteolysis of fibrin) – for suspected pulmonary embolism (see also under pulmonary embolism/physical examination Wells score to determine the clinical probability of pulmonary embolism).
- Alcohol level
- Digoxin level
- Drug screening
- Toxicological examinations – in case of suspected intoxications.
