NPPB and COVID-19: Several biomarkers of inflammation and hypercoagulability, including C-reactive protein (CRP) [9], N-terminal pro-type natriuretic peptide (NT-proBNP) [10], Lactate dehydrogenase (LDH) [11, 12], procalcitonin [13, 14], NLR [12, 15], ferritin [11], troponin [16, 17], and D-dimer [18] have been associated with COVID-19 severity.