GMS /
6402
/ /
Final
/ /
EXAM
/ /
QUESTIONS WITH CORRECT ANSWERS
/ // // //
breathing //air //with //low //PO2 //- //verified //answer(s)-✔✔DECREASE //ALVEOLAR //PO2
no //change //alveolar //PCO2
increased //alveolar //ventilation //and //unchanged //metabolism //- //verified //answer(s)-
✔✔INCREASE //ALVEOLAR //PO2
decrease //alveolar //PCO2
decreased //alveolar //ventilation //and //unchanged //metabolism //- //verified //answer(s)-
✔✔DECREASE //ALVEOLAR //PO2
increase //alveolar //PCO2
increased //metabolism //and //unchanged //alveolar //ventilation //- //verified //answer(s)-
✔✔DECREASE //ALVEOLAR //PO2
increase //alveolar //PCO2
,proportional //increase //in //metabolism //and //alveolar //ventilation //- //verified //answer(s)-
✔✔no //change //in //alveolar //PO2 //or //PCO2
As /
/the /
/lungs /
/fill /
/with /
/air /
/and //we //move //from //a //low //lung //volume //to //higher //lung //volumes, //airway //resistance //will:
- //increase //linearly
- //decrease //exponentially
- //increase //exponentially
- //decrease //linearly
- //all //of //the //above //- //verified //answer(s)-✔✔decrease //exponentially
A //patient //performs //an //expiratory //forced //vital //capacity //maneuver. //His //FVC //is //2 //liters //and
//his /
/FEV1 /
/is //
1/
/liter. /
/Based /
/on //your //knowledge //of //these //numbers //you //would //predict //that //this //person //suffers //from:
- //a //restrictive //lung //disease
- //pulmonary //fibrosis
- //an //obstructive //lung //disease
- //all //of //the //above
- //this //patient //is //normal //- //verified //answer(s)-✔✔an //obstructive //lung //disease
When //at //sea //level //and //breathing //room //air, //the //partial //pressure //of //O2 //in //inspired //air //is
,- //760 //mm //Hg
- //40 //mm //Hg
- //100 //mm //Hg
- //160 //mm //Hg
- //150 //mm //Hg //- //verified //answer(s)-✔✔150 //mm //Hg
A/
/patient /
/begins /
/to /
/hyperventilate /
/while /
/sitting /
/in //
a/
/clinic /
/on /
/Miami /
/Beach /
/and /
/breathing /
/room /
/air. /
/Over /
/the /
/ensuing //
1 //minute, //his //PACO2 //drops //to //20 //mm //Hg. //What //is //his //PaO2 //at //that //moment //in //time?
- //150 //mm //Hg
- //125 //mm //Hg
- //100 //mm //Hg
- //75 //mm //Hg
- //50 //mm //Hg //- //verified //answer(s)-✔✔125 //mm //Hg
, across //the //pulmonary //capillary //membrane //is:
-/
/alveolar /
/epithelium, /
/interstitial /
/space, /
/blood, /
/capillary /
/basement /
/membrane- //interstitial //space, //alveolar //epithelium, //capillary //basement //membrane, //blood
- //alveolar //epithelium, //blood, //interstitial //space, //capillary //basement //membrane
- //alveolar //epithelium, //interstitial //space, //capillary //basement //membrane, //blood
-/
/alveolar /
/epithelium, //capillary //basement //membrane, //blood, //interstitial //space //- //verified //answer(s)-
✔✔alveolar //epithelium, //interstitial //space, //capillary //basement //membrane, //blood
When //
a/
/gas /
/in /
/the //blood //such //as //oxygen //fails //to //reach //diffusion //equilibrium //with //the //alveolar //air //as //it
//leaves //the //pulmonary //capillary //bed //is //said //to //be
- //perfusion //limited
- //normoxic
- //diffusion //limited
- //mixed //perfusion //and //diffusion //limited
- //hyperoxic //- //verified //answer(s)-✔✔diffusion //limited
Under /
/normal /
6402
/ /
Final
/ /
EXAM
/ /
QUESTIONS WITH CORRECT ANSWERS
/ // // //
breathing //air //with //low //PO2 //- //verified //answer(s)-✔✔DECREASE //ALVEOLAR //PO2
no //change //alveolar //PCO2
increased //alveolar //ventilation //and //unchanged //metabolism //- //verified //answer(s)-
✔✔INCREASE //ALVEOLAR //PO2
decrease //alveolar //PCO2
decreased //alveolar //ventilation //and //unchanged //metabolism //- //verified //answer(s)-
✔✔DECREASE //ALVEOLAR //PO2
increase //alveolar //PCO2
increased //metabolism //and //unchanged //alveolar //ventilation //- //verified //answer(s)-
✔✔DECREASE //ALVEOLAR //PO2
increase //alveolar //PCO2
,proportional //increase //in //metabolism //and //alveolar //ventilation //- //verified //answer(s)-
✔✔no //change //in //alveolar //PO2 //or //PCO2
As /
/the /
/lungs /
/fill /
/with /
/air /
/and //we //move //from //a //low //lung //volume //to //higher //lung //volumes, //airway //resistance //will:
- //increase //linearly
- //decrease //exponentially
- //increase //exponentially
- //decrease //linearly
- //all //of //the //above //- //verified //answer(s)-✔✔decrease //exponentially
A //patient //performs //an //expiratory //forced //vital //capacity //maneuver. //His //FVC //is //2 //liters //and
//his /
/FEV1 /
/is //
1/
/liter. /
/Based /
/on //your //knowledge //of //these //numbers //you //would //predict //that //this //person //suffers //from:
- //a //restrictive //lung //disease
- //pulmonary //fibrosis
- //an //obstructive //lung //disease
- //all //of //the //above
- //this //patient //is //normal //- //verified //answer(s)-✔✔an //obstructive //lung //disease
When //at //sea //level //and //breathing //room //air, //the //partial //pressure //of //O2 //in //inspired //air //is
,- //760 //mm //Hg
- //40 //mm //Hg
- //100 //mm //Hg
- //160 //mm //Hg
- //150 //mm //Hg //- //verified //answer(s)-✔✔150 //mm //Hg
A/
/patient /
/begins /
/to /
/hyperventilate /
/while /
/sitting /
/in //
a/
/clinic /
/on /
/Miami /
/Beach /
/and /
/breathing /
/room /
/air. /
/Over /
/the /
/ensuing //
1 //minute, //his //PACO2 //drops //to //20 //mm //Hg. //What //is //his //PaO2 //at //that //moment //in //time?
- //150 //mm //Hg
- //125 //mm //Hg
- //100 //mm //Hg
- //75 //mm //Hg
- //50 //mm //Hg //- //verified //answer(s)-✔✔125 //mm //Hg
, across //the //pulmonary //capillary //membrane //is:
-/
/alveolar /
/epithelium, /
/interstitial /
/space, /
/blood, /
/capillary /
/basement /
/membrane- //interstitial //space, //alveolar //epithelium, //capillary //basement //membrane, //blood
- //alveolar //epithelium, //blood, //interstitial //space, //capillary //basement //membrane
- //alveolar //epithelium, //interstitial //space, //capillary //basement //membrane, //blood
-/
/alveolar /
/epithelium, //capillary //basement //membrane, //blood, //interstitial //space //- //verified //answer(s)-
✔✔alveolar //epithelium, //interstitial //space, //capillary //basement //membrane, //blood
When //
a/
/gas /
/in /
/the //blood //such //as //oxygen //fails //to //reach //diffusion //equilibrium //with //the //alveolar //air //as //it
//leaves //the //pulmonary //capillary //bed //is //said //to //be
- //perfusion //limited
- //normoxic
- //diffusion //limited
- //mixed //perfusion //and //diffusion //limited
- //hyperoxic //- //verified //answer(s)-✔✔diffusion //limited
Under /
/normal /
