Sputum culture
Sputum culture, A sputum culture is a diagnostic test used to identify and analyze microorganisms, such as bacteria or fungi,
BNP NT-proBNP
BNP NT-proBNP, BNP (B-type natriuretic peptide), and NT-proBNP (N-terminal pro-B-type natriuretic peptide) are both biomarkers