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NBME CBSE ACTUAL TES T
QUESTIONS AND ANSWERS (QUIZ
BANK WITH ALL THE CO RRECT
ANSWERS)(USMLE STEP
1)MEDICAL EXAMINATIO N
Question : Type II pneumocytes
Correct answer: surfactant (lecithin)
Correct answer: Proliferate after injury
Correct answer: Type I progenitors
Correct answer: Neonatal Respiratory Distress Syndrome
Question : Polio live v killed vaccine
Correct answer: Killed = Salk = IgG
Correct answer: Live = Sabin = IgG + IgA
Correct answer: - can be shed in feces
Question : Neonatal Respiratory Distress:
Correct answer: Etiology + Tx
Correct answer: Maternal DM (high insulin)
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Correct answer: or C-section (low cortisol)
Correct answer: TX: dexamethasone before birth
Question : Lung maturity determined with
Correct answer: Amniocentesis of Phospholipids (*type II
pneumocytes)
Correct answer: L >> S
Question : Type I pneumocytes
Correct answer: Squamous gas diffusion
Question : Elastase in lungs
Correct answer: macrophage: lysosomes Correct answer: PMN: azuronphilic granules
Question : Elastin stretches and recoils due to
Correct answer: Lysine interchain crosslinks
Question : air pressure and intrapleural pressure at FRC
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Correct answer: Air pressure = 0
Correct answer: Intrapleural pressure = -5
Question : Pulm Vasc Resistance is lowest during
Correct answer: Exhale of Tidal Volume
Question : Lung Compliance is decreased by
Correct answer: LHF, pulmonary edema,
Correct answer: pulmonary fibrosis
Question : Lung Compliance is increased by
Correct answer: emphysema, age
Question : Obesity affects ERV and FRC
Correct answer: DECREASE
Correct answer: ERV & FRC
Question : Blood flow/min (pulmonary v systemic)
Correct answer: pulmonary = systemic
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