Hx
Acute vs chronic
Presence/description of sputum
Associated symptoms
Constitutional
URI
Postnasal drip
Dyspnea
Wheezing
Chest pain
Heartburn
Other
Exacerbating and aggravating factors
Timing
Exposures
Smoking history
History of lung disease
Allergies
Medications (esp. ACE-Is)
PE
Vital signs
Pulse oximetry
Exam of nasal mucosa
Oropharynx
Heart
Lungs
Lymph nodes
Extremities (clubbing, cyanosis, edema)
Ddx
Asthma
Acute bronchitis
Chronic bronchitis
Pneumonia
Atypical pneumonia
Aspiration pneumonia
Lung cancer
COPD exacerbation (bronchitis)
Tuberculosis
GERD
Upper respiratory infection
Postnasal drip
Lung abscess
Pericarditis
Postnasal drip
Sarcoidosis
Acute HIV infection
HIV/AIDS
Metastatic cancer
Pneumonitis
Foreign body
Vasculitis (e.g. Wegener's)
Interstitial lung disease
Pulmonary fibrosis
Pleurodynia
CHF
Cardiac valvular disease
Lymphoma
Workup
CXR
CBC
Sputum Gram stain and culture
Urine Legionella antigen
Serum Mycoplasma PCR
Cold agglutinin measurement
Bronchoscopy with bronchoalveolar lavage
Pulse oximetry or ABG
HIV antibody