[Expert Solution]: Mr

Mr. R.I. is a 69-year-old male, who has been referred to the Pulmonary Disease Clinic by his nurse practitioner. He presents with the following chief complaint: “difficulty catching my breath and it is getting worse; a persistent, dry, and hacking cough; and a tight feeling in my chest.” He appears pale but is in no apparent distress. Personal History He is a retired construction contractor of 45 years, who primarily installed insulation materials in high-rise apartment and office buildings. He has been retired for four years and first began experiencing respiratory symptoms approximately six months ago. He has attributed those symptoms to “being a long-time smoker and it is finally catching up with me.” Paternal history is positive for coronary artery disease; father died at age 63 from “heart problems.” Maternal history of cerebrovascular disease; mother died at age 73 “following several minor strokes.” Medical Update Auscultation reveals dyspnea and tachypnea. There are prominent end-inspiratory crackles in the posterior and lower lateral regions bilaterally. Mild wheezing is present at rest. Normal S1 and S2 heart sounds, with no murmurs detected. Bowel sounds are normal. Blood pressure and pulses are good. Chest X-ra