Pathophysiology Practice test

Pathophysiology Practice test

>>>>>>>>>>>>Respiratory Failure<<<<<<<<<<<<< ......................Single Choice...................................

published on June 20, 2012213 responses 0

thype II respiratory failure is diagnosed by?

PaO2 < 50 mmHg(6.67 kPa),PaCO2 > 60mmHg(8 kPa)
PaO2 < 60 mmHg(8 kPa),PaCO2 > 50mmHg(6.67 kPa)
PaO2 < 50 mmHg(6.67 kPa),PaCO2 > 40mmHg(5.33
kPa)
PaO2 < 70 mmHg(8 kPa),PaCO2 > 40mmHg(5.33 kPa)

which of following may result in functional shunt?

embolism of pulmonary artery
↓ pressure of pulmonary artery
pulmonary edema
contraction of pulmonary arteriole

sedative agents overdosed lead to depressed of respiratory center and blood gases may altered?

PaO2↓, no altered for PaCO2
PaO2↓, PaCO2↓
PaO2↓, PaCO2↑
no altered for PaO2,PaCO2↑

dead space-like ventilation refer to?

hypoventilation in some alveolar
↓ ( V/Q) in part alveolar
right-to-left shunt
↑ (V/Q) in part alveolar

respiratory failure always refer to?

severe dysfunction of internal respiration
severe dysfunction of external respiration
dysfunction of elimination of CO2
disorder of hemoglobin for transport gases

obstructive may be due to?

↓ pulmonary compliance
alveolar ventilation perfusion mismatch
restrictive of alveolar distend
peripheral airway stenosis

which disease may lead to restrictive hypoventilation?

paralysis of glottis
poliomyelitis
tumor in trachea
chronic obstructive pulmonary disease
edema of glottis

which is the cause of respiratory failure?

anemia
pneumonia
metheoglobinemia
cyanide intoxication

the difference between functional shunt and true shunt is?

PaO2 ↓
PaCO2 is normal
PaO2 may not ↓
difficult to improve PaO2 by ure oxygen inspired
no help to improve PaO2 and PaCO2 by the therapy
of ↑ ventilation

pulmonary hypertension always secondly to chronic obstructive pulmonary disease because?

pulmonary arteriole constriction
↑ of cardiac output
PaCO2 ↓
formed of microthrombus
↑ of blood volume

oxygen therapy for type II respiratory failure is?

low concentration in nasal tube and slowly flow
high concentration in nasal tube and slowly flow
low concentration in nasal tube and quickly flow
high concentration in nasal tube and quickly flow

ventilation disorder lead to?

PaO2↓, no altered for PaCO2
PaO2↓, PaCO2↓
PaO2↓, PaCO2↑
no altered for PaO2,PaCO2↑

chronic obstructive pulmonary diseases may lead to?

inspiratory dyspnea
hyperventilation of alveolar
expiratory dyspnea
dead spece like ventilation

pulmonary consolidation result in?

functional shunt
true shunt
(V/Q) ↑
wasted ventilation

the most common cause of chronic respiratory failure is?

infection of upper respiratory tract
chronic obstructive pulmonary disease
embolism of pulmonary arery
overdoes of sedatives or anestetic agents