NBME CBSE Exam Questions
with100% correct answers
Type II pneumocytes
ANS: surfactant (*lecithin*)
Proliferate after injury
Type I progenitors
*Neonatal Respiratory Distress Syndrome*
Quiz Polio live v killed vaccine
ANS: Killed = Salk = IgG
Live = Sabin = IgG + IgA
- can be shed in feces
Quiz Neonatal Respiratory Distress:
Etiology + Tx
ANS: Maternal DM (*high insulin*)
or C-section (*low cortisol*)
TX: *dexamethasone* before birth
Quiz Lung maturity determined with
ANS: Amniocentesis of Phospholipids (*type II pneumocytes)
L >> S
Quiz Type I pneumocytes
,ANS: Squamous gas diffusion
Quiz Elastase in lungs
ANS: macrophage: *lysosomes*
PMN: *azuronphilic granules*
Quiz Elastin stretches and recoils due to
ANS: Lysine interchain crosslinks
Quiz air pressure and
intrapleural pressure at FRC
ANS: Air pressure = 0
Intrapleural pressure = -5
Quiz Pulm Vasc Resistance is lowest during
ANS: Exhale of Tidal Volume
Quiz Lung Compliance is decreased by
ANS: LHF, pulmonary edema,
pulmonary fibrosis
Quiz Lung Compliance is increased by
ANS: emphysema, age
Quiz Obesity affects ERV and FRC
ANS: DECREASE
ERV & FRC
Quiz Blood flow/min (pulmonary v systemic)
,ANS: pulmonary = systemic
Quiz Anatomic pulmonary shunting
ANS: Bronchial circulation causes
*decreased PO2 in LA/LV*
than in pulmonary capillaries
Quiz More ventilation is at the
ANS: BASE
Quiz O2-Hgb dissociation LEFT shift
ANS: basic, cold, low 2,3 BPG
low pO2 (compensatory erythrocytosis)
Quiz O2-Hgb dissociation RIGHT shift
ANS: low pH, high 2,3BPG, high T
HOT, ACIDIC
Quiz CO2 transport to lungs
ANS: *carbonic anhydrase*
Cl shift
*Haldane*: CO2 released to lung
(*Bohr*: O2 release to tissue)
Quiz CO poisoning causes
ANS: carboxyhemoglobin
no affect on PaO2
Quiz Cyanide poisoning causes
ANS: lactic acidosis
, Quiz How to treat cyanide poisoning
ANS: *Amyl nitrite* --> Methemoglobin
THEN *Thiosulfate* (hydroxycobalamin)
Quiz Normal A-a gradient
ANS: 5-15
Hypoventilation: Heroin OD or high altitude
Quiz Increased A-a gradient
ANS: *Diffusion impairment* (fibrosis)
*R-L shunt* (aspiration, ARDS)
*V/Q mismatch* (pulmonary edema
Quiz AT --> AT II
where and how
ANS: ACE
(- high in sarcoidosis)
In small pulmonary bV
Quiz C5a induces what
ANS: PMN influx (ie: in lungs)
Quiz Korotkoff sound
ANS: BP cuff - appear and disappear
in inflation/deflation
Quiz Pulsus Paradoxus
ANS: 10mmHg difference in
Korotkoff sound
with100% correct answers
Type II pneumocytes
ANS: surfactant (*lecithin*)
Proliferate after injury
Type I progenitors
*Neonatal Respiratory Distress Syndrome*
Quiz Polio live v killed vaccine
ANS: Killed = Salk = IgG
Live = Sabin = IgG + IgA
- can be shed in feces
Quiz Neonatal Respiratory Distress:
Etiology + Tx
ANS: Maternal DM (*high insulin*)
or C-section (*low cortisol*)
TX: *dexamethasone* before birth
Quiz Lung maturity determined with
ANS: Amniocentesis of Phospholipids (*type II pneumocytes)
L >> S
Quiz Type I pneumocytes
,ANS: Squamous gas diffusion
Quiz Elastase in lungs
ANS: macrophage: *lysosomes*
PMN: *azuronphilic granules*
Quiz Elastin stretches and recoils due to
ANS: Lysine interchain crosslinks
Quiz air pressure and
intrapleural pressure at FRC
ANS: Air pressure = 0
Intrapleural pressure = -5
Quiz Pulm Vasc Resistance is lowest during
ANS: Exhale of Tidal Volume
Quiz Lung Compliance is decreased by
ANS: LHF, pulmonary edema,
pulmonary fibrosis
Quiz Lung Compliance is increased by
ANS: emphysema, age
Quiz Obesity affects ERV and FRC
ANS: DECREASE
ERV & FRC
Quiz Blood flow/min (pulmonary v systemic)
,ANS: pulmonary = systemic
Quiz Anatomic pulmonary shunting
ANS: Bronchial circulation causes
*decreased PO2 in LA/LV*
than in pulmonary capillaries
Quiz More ventilation is at the
ANS: BASE
Quiz O2-Hgb dissociation LEFT shift
ANS: basic, cold, low 2,3 BPG
low pO2 (compensatory erythrocytosis)
Quiz O2-Hgb dissociation RIGHT shift
ANS: low pH, high 2,3BPG, high T
HOT, ACIDIC
Quiz CO2 transport to lungs
ANS: *carbonic anhydrase*
Cl shift
*Haldane*: CO2 released to lung
(*Bohr*: O2 release to tissue)
Quiz CO poisoning causes
ANS: carboxyhemoglobin
no affect on PaO2
Quiz Cyanide poisoning causes
ANS: lactic acidosis
, Quiz How to treat cyanide poisoning
ANS: *Amyl nitrite* --> Methemoglobin
THEN *Thiosulfate* (hydroxycobalamin)
Quiz Normal A-a gradient
ANS: 5-15
Hypoventilation: Heroin OD or high altitude
Quiz Increased A-a gradient
ANS: *Diffusion impairment* (fibrosis)
*R-L shunt* (aspiration, ARDS)
*V/Q mismatch* (pulmonary edema
Quiz AT --> AT II
where and how
ANS: ACE
(- high in sarcoidosis)
In small pulmonary bV
Quiz C5a induces what
ANS: PMN influx (ie: in lungs)
Quiz Korotkoff sound
ANS: BP cuff - appear and disappear
in inflation/deflation
Quiz Pulsus Paradoxus
ANS: 10mmHg difference in
Korotkoff sound
