pathophysiology practice test (8)

pathophysiology practice test (8)

>>>>>>>>Hypoxia practice test<<<<<<<<<<<< >>>>>>>>>>>>>>multiple choice<<<<<<<<<<<<

published on June 17, 201221 responses 0 5.0★ / 5

in the early stage of acute hypotonic hypoxia the organs of decreasing blood perfusion are?

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heart
brain
stomach
kidney

in carbon monoxide poisoning?

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PaO2↓
CO2 max↓
CaO2↓
SaO2↓

which kinds of hypoxia can occur in the left heart failure?

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hypotonic hypoxia
circulatry hypoxa
isotonic hypoxia
histogenous hypoxia

in hypotonic hypoxia the mechanisims of pulmonary hypertension are?

Select the three correct answers
total periphery resistence↑
excitability and contractility of the pulmonary arterial
SMC↑
excitement of the sympathetic nervous system
substances of pulomnary vasoconstriction↑

oxygen toxicity can mainly injury?

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central nerous system
respiratory system
circulatory system
alimentary system

in the methemoglobinemia?

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HbCO is formed CO2 max↓
HbO2 dissociation curve is leftward shift O2 releasing
from HbO2↓
HbFe becomes HbFe CO2max↓
cellular ability of O2 utilization↓

Hypoxia is a pathological process,in hypoxia?

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O2 take from inspiring air is
inadequate
O2 transport to cells is inadequate
cellular O2 supply is inadequate
O2 utilization by cells is inadequate

cyanosis may appear in?

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hypoventilation
severe anemia
methemoglobinemia
right heart failure

which are the reasons of hypotonic hypoxia?

Select the four correct answers
obstruction of the airway
pulmonary edema
tetralogy of Follor
severe peneumothorax

which parameters does accord with hemic hypoxia?

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(CaO2-CvO2)↑
CaO2↓
PaO2↓
CO2max↓

in which kinds hypoxia does CO2 max keep at the normal level?

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hypotonic hypoxia
hemic hypoxia
histogenous hypoxia
circulatroy hypoxa

in carbon monoxide poisoning?

Select the two correct answers
HbCO is formed,blood O2 capacity↓
ventilation volume↓
HbFe2+ becomes HbFe3+
HbO2 dissociation curve is leftward
shift,released O2 from HbO2↓

in which kinds of hypoxia does PaO2 keep at the normal level?

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hyptoinic hypoxia
circulatroy hypoxia
hemic hypoxia
histogenous hypoxia

which factors can induce a rightward shift of the oxyhemoglobin dissociation curve?

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pH↑
[H]↑
temperature↓
[2,3-DPG]↑

in chronic hypoxia?

Select the three correct answers
erythropoietin synthesis and
releasing↑
the HbO2 dissociation curve shift to
leftward
RBC production↑
cellular ability of the O2
utilization↑

in hypotonic hypoxia, the stimulation which can causes respiratroy centra excitement are?

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PaCO2↑
PaO2↓
pain
[H]↑

the cellular damage induced by severe hypoxia include?

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cell membrane injury
dysfunction of mitochondria
ATP production↓
autolysis necrosis of cell

which parameters does accord with circulatory hypoxya?

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PaO2↓
(CaO2-CvO2)↑
CaO2↓
CvO2↓↓

when PaO2<60mmHg?

Select the two correct answers
the excitability of respiratory
center↑
cardiac output↓
the return volume of blood↑
pulmonary hypertension