Your 65-year-old neighbor tells you that he smoked for 25 years but quit 5 years ago. He has been experiencing a productive cough for 3 weeks. Occasionally he sees blood in the sputum. What can you...

Your 65-year-old neighbor tells you that he smoked for 25 years but quit 5 years ago. He has been experiencing a productive cough for 3 weeks. Occasionally he sees blood in the sputum. What can you advise him?

Where are the following cardiac valves located?— (A) mitral valve; (B) tricuspid valve; and (C) pulmonic valve.