Are there any laboratory findings which are typical for patients with COVID-19?

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In general, laboratory findings vary. However patterns have been reported: 80% have lymphopenia, frequently platelet count is low, however usually not < 100 G/L. D-Dimer is elevated and this is also a predictor of poor outcome. Other coagulation parameters are usually normal. When coagulation parameters deter, this could point to DIC. 

70% of patients have low levels of eosinophilic granulocytes. Liu et al. suggested that a rise in eosinophils may be a sign of recovery.

ALAT is typically elevated because cholangiocytes express ACE2 and are therefore also a target for SARS-CoV-2

CK may be elevated in some patients

Procalcitonin is usually not elevated, unless bacterial superinfection is present.

IL-6 correlates with disease severity