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Physiology

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Respiration

Question
13 out of 33
 

Cyanosis which is not corrected by 100% oxygen therapy is due to: (LQ)



A Chronic obstructive pulmonary disease

B Bronchial asthma

C TOF

D Interstitial lung disease

Ans. C TOF100% OXYGEN INHALATION improves cyanosis in every case except when there is right to left shunting of blood so that deoxygenated blood bypasses the lung and goes into the systemic circulation as in the case seen in TOF and various other congenital heart diseases with right to left shunt.

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