GMS6402 Medical Pulmonary
Physiology Exam with Questions and
Correct Answers Latest 2025-
2026GRADED A+
The ,vast ,majority ,of ,the ,total ,surface ,area ,of ,the ,lung ,is ,found ,in ,the ,-
,CORRECT ,ANSWER-alveoli
All ,of ,the ,following ,can ,be ,measured ,via ,spirometry ,except ,- ,CORRECT
,ANSWER-Functional ,residual ,capacity ,(FRC)
What ,is ,the ,muscle ,that ,is ,used ,for ,expiration? ,- ,CORRECT ,ANSWER-External
,obliques
What ,is ,the ,transpulmonary ,pressure ,if ,pleural ,pressure ,is ,-7 ,cm ,H2O ,and
,alveolar ,pressure ,is ,-3 ,cm ,H2O? ,- ,CORRECT ,ANSWER-+4 ,cm ,H2O
Lung ,compliance ,test ,indicates ,that ,a ,3 ,cm ,H2O ,change ,in ,transpulmonary
,pressure ,generates ,a ,0.9 ,L ,change ,in ,lung ,volume. ,What ,is ,this ,patient's ,lung
,compliance? ,- ,CORRECT ,ANSWER-0.3 ,L ,of ,air/cm ,H2O
Airway ,resistance ,across ,a ,set ,of ,airways ,is ,lowest ,under ,what ,conditions? ,-
,CORRECT ,ANSWER-Airway ,radius ,is ,large ,and ,length ,of ,the ,tube ,is ,small
As ,the ,lungs ,fill ,with ,air ,and ,we ,move ,from ,a ,low ,lung ,volume ,to ,a ,higher ,lung
,volume, ,airway ,resistance ,will ,- ,CORRECT ,ANSWER-Decrease ,exponentially
A ,patient ,performs ,an ,expiratory ,forced ,vital ,capacity ,maneuver. ,His ,FVC ,is ,2 ,L
,and ,his ,FEV1 ,is ,1 ,L. ,Based ,on ,these ,numbers, ,you ,would ,predict ,this ,patient
,suffers ,from ,what? ,- ,CORRECT ,ANSWER-Obstructive ,lung ,disease
When ,at ,sea ,level ,and ,breathing ,room ,air, ,the ,partial ,pressure ,of ,O2 ,in ,inspired
,air ,is ,what? ,- ,CORRECT ,ANSWER-160 ,mmHg
, 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 ,mmHg.
,What ,is ,his ,PaO2 ,at ,that ,moment ,in ,time? ,- ,CORRECT ,ANSWER-125 ,mmHg
With ,respect ,to ,the ,path ,of ,O2 ,diffusion, ,the ,proper ,order ,for ,the ,movement ,of
,oxygen ,across ,the ,pulmonary ,capillary ,membrane ,is ,- ,CORRECT ,ANSWER-
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 ,-
,CORRECT ,ANSWER-diffusion ,limited
Under ,normal ,physiological ,conditions, ,the ,max ,capacity ,of ,O2 ,that ,Hb ,can
,carry ,is ,approx: ,- ,CORRECT ,ANSWER-200 ,mL ,per ,day
Which ,of ,the ,following ,will ,increase ,the ,content ,of ,arterial ,oxygen ,- ,CORRECT
,ANSWER-increased ,hemoglobin ,concentration
Blood ,gas ,analysis: ,partial ,pressure ,of ,oxygen ,in ,arterial ,blood ,= ,60 ,mmHg,
,oxygen ,content ,= ,18 ,mls ,O2/dL ,of ,blood. ,What ,is ,percent ,hemoglobin ,sat ,of
,patient? ,- ,CORRECT ,ANSWER-90%
Arterial ,blood ,gas ,is ,ordered ,and ,the ,following ,values ,are ,obtained; ,Hb ,= ,17
,g/dL, ,hemoglobin ,sat ,= ,100%, ,PaO2 ,= ,200 ,mmHg. ,What ,is ,content ,of ,total
,oxygen ,in ,arterial ,blood ,sample? ,- ,CORRECT ,ANSWER-23.38 ,mls ,O2/dL ,of
,blood
A ,patient's ,arterial ,blood ,gas ,indicates ,that ,her ,PaCO2 ,in ,55 ,mmHg. ,What ,can
,you ,conclude ,about ,her ,ventilation ,state? ,- ,CORRECT ,ANSWER-she ,is
,hypoventilating
A ,post-op ,patient ,is ,still ,unconscious, ,but ,is ,receiving ,supplemental ,oxygen ,via
,a ,mask ,device. ,An ,ABG ,indicates ,that ,pH ,= ,7.31, ,PaO2 ,= ,155 ,mmHg, ,PaCO2 ,=
,82 ,mmHg, ,HCO30 ,= ,26 ,mEq/L. ,What ,is ,true? ,- ,CORRECT ,ANSWER-Patient ,is
,acidotic ,
HCO3- ,is ,normal
PaCO2 ,is ,elevated
With ,respect ,to ,the ,pulmonary ,circulatory ,system ,overall ,compliance ,of ,the
,system ,is ,- ,CORRECT ,ANSWER-high
In ,the ,case ,of ,severe ,embolism, ,over ,time ,the ,gas ,comp ,of ,alveoli ,will ,become
,- ,CORRECT ,ANSWER-150 ,mmHg ,O2; ,0 ,mmHg ,CO2
Regarding ,pulmonary ,edema ,(PE), ,what ,is ,true? ,- ,CORRECT ,ANSWER-PE ,is
,characterized ,by ,increased ,fluid ,in ,the ,interstitial ,space
Physiology Exam with Questions and
Correct Answers Latest 2025-
2026GRADED A+
The ,vast ,majority ,of ,the ,total ,surface ,area ,of ,the ,lung ,is ,found ,in ,the ,-
,CORRECT ,ANSWER-alveoli
All ,of ,the ,following ,can ,be ,measured ,via ,spirometry ,except ,- ,CORRECT
,ANSWER-Functional ,residual ,capacity ,(FRC)
What ,is ,the ,muscle ,that ,is ,used ,for ,expiration? ,- ,CORRECT ,ANSWER-External
,obliques
What ,is ,the ,transpulmonary ,pressure ,if ,pleural ,pressure ,is ,-7 ,cm ,H2O ,and
,alveolar ,pressure ,is ,-3 ,cm ,H2O? ,- ,CORRECT ,ANSWER-+4 ,cm ,H2O
Lung ,compliance ,test ,indicates ,that ,a ,3 ,cm ,H2O ,change ,in ,transpulmonary
,pressure ,generates ,a ,0.9 ,L ,change ,in ,lung ,volume. ,What ,is ,this ,patient's ,lung
,compliance? ,- ,CORRECT ,ANSWER-0.3 ,L ,of ,air/cm ,H2O
Airway ,resistance ,across ,a ,set ,of ,airways ,is ,lowest ,under ,what ,conditions? ,-
,CORRECT ,ANSWER-Airway ,radius ,is ,large ,and ,length ,of ,the ,tube ,is ,small
As ,the ,lungs ,fill ,with ,air ,and ,we ,move ,from ,a ,low ,lung ,volume ,to ,a ,higher ,lung
,volume, ,airway ,resistance ,will ,- ,CORRECT ,ANSWER-Decrease ,exponentially
A ,patient ,performs ,an ,expiratory ,forced ,vital ,capacity ,maneuver. ,His ,FVC ,is ,2 ,L
,and ,his ,FEV1 ,is ,1 ,L. ,Based ,on ,these ,numbers, ,you ,would ,predict ,this ,patient
,suffers ,from ,what? ,- ,CORRECT ,ANSWER-Obstructive ,lung ,disease
When ,at ,sea ,level ,and ,breathing ,room ,air, ,the ,partial ,pressure ,of ,O2 ,in ,inspired
,air ,is ,what? ,- ,CORRECT ,ANSWER-160 ,mmHg
, 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 ,mmHg.
,What ,is ,his ,PaO2 ,at ,that ,moment ,in ,time? ,- ,CORRECT ,ANSWER-125 ,mmHg
With ,respect ,to ,the ,path ,of ,O2 ,diffusion, ,the ,proper ,order ,for ,the ,movement ,of
,oxygen ,across ,the ,pulmonary ,capillary ,membrane ,is ,- ,CORRECT ,ANSWER-
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 ,-
,CORRECT ,ANSWER-diffusion ,limited
Under ,normal ,physiological ,conditions, ,the ,max ,capacity ,of ,O2 ,that ,Hb ,can
,carry ,is ,approx: ,- ,CORRECT ,ANSWER-200 ,mL ,per ,day
Which ,of ,the ,following ,will ,increase ,the ,content ,of ,arterial ,oxygen ,- ,CORRECT
,ANSWER-increased ,hemoglobin ,concentration
Blood ,gas ,analysis: ,partial ,pressure ,of ,oxygen ,in ,arterial ,blood ,= ,60 ,mmHg,
,oxygen ,content ,= ,18 ,mls ,O2/dL ,of ,blood. ,What ,is ,percent ,hemoglobin ,sat ,of
,patient? ,- ,CORRECT ,ANSWER-90%
Arterial ,blood ,gas ,is ,ordered ,and ,the ,following ,values ,are ,obtained; ,Hb ,= ,17
,g/dL, ,hemoglobin ,sat ,= ,100%, ,PaO2 ,= ,200 ,mmHg. ,What ,is ,content ,of ,total
,oxygen ,in ,arterial ,blood ,sample? ,- ,CORRECT ,ANSWER-23.38 ,mls ,O2/dL ,of
,blood
A ,patient's ,arterial ,blood ,gas ,indicates ,that ,her ,PaCO2 ,in ,55 ,mmHg. ,What ,can
,you ,conclude ,about ,her ,ventilation ,state? ,- ,CORRECT ,ANSWER-she ,is
,hypoventilating
A ,post-op ,patient ,is ,still ,unconscious, ,but ,is ,receiving ,supplemental ,oxygen ,via
,a ,mask ,device. ,An ,ABG ,indicates ,that ,pH ,= ,7.31, ,PaO2 ,= ,155 ,mmHg, ,PaCO2 ,=
,82 ,mmHg, ,HCO30 ,= ,26 ,mEq/L. ,What ,is ,true? ,- ,CORRECT ,ANSWER-Patient ,is
,acidotic ,
HCO3- ,is ,normal
PaCO2 ,is ,elevated
With ,respect ,to ,the ,pulmonary ,circulatory ,system ,overall ,compliance ,of ,the
,system ,is ,- ,CORRECT ,ANSWER-high
In ,the ,case ,of ,severe ,embolism, ,over ,time ,the ,gas ,comp ,of ,alveoli ,will ,become
,- ,CORRECT ,ANSWER-150 ,mmHg ,O2; ,0 ,mmHg ,CO2
Regarding ,pulmonary ,edema ,(PE), ,what ,is ,true? ,- ,CORRECT ,ANSWER-PE ,is
,characterized ,by ,increased ,fluid ,in ,the ,interstitial ,space
