NPPB and secondary hypertension: In the screening of nephritis, secondary hypertension, and secondary myocardial disease, elevated values were found in brain natriuretic peptide (BNP) (1760 pg/mL), plasma renin concentration (78.2 pg/mL), plasma aldosterone concentration (516.6 pg/mL), and serum amyloid concentration (96.9 \begin{document}\mu\end{document}g/mL).