Table 1.

Frequently Measured Prognostic Circulating Biomarkers in COVID-19

General chemistry	Alanine/aspartate aminotransferase Bilirubin Creatinine Lactate Lactate dehydrogenase
Cell counts	Leukocyte count (leukocytosis with lymphopenia) Platelet count (thrombocytopenia)
Inflammatory/acute phase markers	C-reactive protein Ferritin Interleukin-6 Procalcitonin
Thrombosis/hemostasis	D-dimer
Cardiac markers	B-type natriuretic peptide N-terminal pro–B-type natriuretic peptide Troponin T Troponin I

When elevated or rising, these biomarkers provide incremental information regarding outcome, but may not necessarily identify an actionable process.