Pulmonology Flashcards
List four types of cells in the lungs?
Goblet: mucus production
Type I Pneumocyte: macrophages (95%)
Type II Pneumocyte: surfactant production
Clara/Dust (Macrophages): ingest dust particles
What is the histology of the trachea?
Top 1/3: stratified squamous epithelium – protect against abrasion
Middle 1/3: mixture
Lower 1/3: tall columnar pseudostratified ciliated epithelium
What muscles are needed to breathe IN?
Innermost intercostals – contralateral chest wall
External intercostals – ipsilateral chest wall
Diaphragm
What muscles are needed to force air IN?
Scalenes
Sternocleidomastoid (SCM)
Trapezius
Pectoralis Major and Minor
What muscles are needed to breathe OUT?
Passive – recoil
What muscles are needed to force air OUT?
Internal and External Oblique
Recurs Abdominus
Transverse Abdominus
Quadratus Lumborum
What is the difference between the carotid body and the carotid?
Carotid body: chemoreceptor
Carotid sinus: baroreceptor
What color is air on X-ray?
Black “radiolucent”
What color is fluid/solids on X-ray?
White “radiopaque”
What disease has steeple sign on neck film?
Croup
What disease has thumb sign on neck film?
Epiglottitis
What is a “blue bloater”?
Bronchitis (chronic)
What is a “pink puffer”?
Emphysema
What diseases have pulmonary eosinophilia?
Aspergillosis, strongyloides
What drugs cause pulmonary eosinophilia?
Nitrofurantoin, sulfonamides
What are the risk factors for lung cancer?
Smoking, radon, 2nd hand smoke, pneumoconiosis (except anthracosis)
What diseases have hemoptysis?
Bronchiectasis, bronchitis, pneumonia, TB, lung cancer
Where is a Bokdalek hernia?
Back of diaphragm
Where is a Morgagni hernia?
Middle of diaphragm
What diseases have respiratory alkalosis?
Restrictive lung diseases – anxiety, pregnancy, Gram - sepsis, PE
What diseases have respiratory acidosis?
Obstructive lung diseases
What diseases have metabolic alkalosis?
Low volume state – vomiting, diuretics, GI blood loss
What diseases have metabolic acidosis?
Acid production – MUDPILES , RTA II, diarrhea
What is the obstructive pattern of blood gasses?
Inc pCO2 —> dec pH, inc RR —> inc pO2