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DIT resp anatomy
Question | Answer |
---|---|
What histological change takes place in the trachea of a smoker? | metaplasia from ciliated columnar to squamous |
anaphylaxis. incusion below thyroid cartilage to establish airway. what structure do you cut? | cricothyroid membrane |
What structure crosses the diaphragm at T8? | IVC |
What structure crosses the diaphragm at T10? | Esophagus |
What structures cross the diaphragm at T12? | (red white and blue) aorta, thoracic duct, azygous v. |
what cell type proliferates during lung damage? | type 2 pneumocytes |
What amniotic fluid measurement is indicative of fetal lung maturity? | lecithin-sphingomyelin ratio>2 |
A young woman has infertility, recurrent URIs and dextrocardia. Which of her proteins is defective? | cilia (dynein arms) = kartagener |
FRC + IC= | TLC |
vital capacity + RV = | TLC |
ERC + RV = | FRC |
IRV + TV = | Inspiratory Capacit |
IC + ERV = | VC |
what substances are known for causing methemoglobinemia? | choloraquine and primaquine; lidocaine; nitrates; dapsone, sulfonamides; metoclopramide |
A 42 yo woman with fibroids is chornically tired. why? | Hypoxia. fibrosis dowsn't give gas enough time to equilibrate = HYPOCHROMIC MICROCYTIC ANEMIA. Fibroids bleed cause decreased hemoglobin |
Pt is shown to have hypoxia and CXR reveals an enlarged heart. | Pulm HTN --> cor pulmonale |