Normal intrapleural pressure during the start of inspiration is _________ mm of Hg?
A. -2
B. -5
C. 0
D. -7
Medical Mcqs
In cases of hypercapnia there is_______________?
In cases of hypercapnia there is_______________?
A. Increased pH of blood
B. Decreased pH of blood
C. Remains same
D. Increased oxygen concentration in blood
Carbon monoxide poisoning causes_______________?
Carbon monoxide poisoning causes_______________?
A. Hypoxic hypoxia
B. Oxygen dissociation curve shifts to left
C. Cyanosis
D. Diffusion capacity of lungs decreases
An important non- respiratory function of lungs is_____________?
An important non- respiratory function of lungs is_____________?
A. Anion balance
B. Sodium balance
C. Potassium balance
D. Ca+2 balance
What is true about pneumothorax ?
What is true about pneumothorax ?
A. Total chest wall diameter is increased
B. Interpleural pressure becomes more negative
C. The concentration of surfactant is reduced in alveoli
D. Increased lung compliance
Inability of exchange of oxygen through lung tissue if known as____________?
Inability of exchange of oxygen through lung tissue if known as____________?
A. Anoxic anoxia
B. Anoxia
C. Histotoxic hypoxia
D. Ischemic hypoxia
The approximate amount of air left in the lungs after maximal forced expiration in a normal woman______________?
The approximate amount of air left in the lungs after maximal forced expiration in a normal woman______________?
A. 0.5 L
B. 2.0 L
C. 1.1 L
D. 1.8 L
Carotid body function in an organ work as_______________?
Carotid body function in an organ work as_______________?
A. Differential pressure of oxygen in arterial blood
B. Differential pressure of oxygen in venous blood
C. Differential pressure of oxygen in in tissue fluids
D. Differential pressure of oxygen in in hemoglobin synthesis
The transport of CO is diffusion limited because_______________?
The transport of CO is diffusion limited because_______________?
A. Bind avidly with Hb
B. Partial pressure of CO is less
C. CO is less absorbed in water
D. Alveolar membrane is less permeable
Oxygen as an emergency drug is contraindicated in______________?
Oxygen as an emergency drug is contraindicated in______________?
A. Anaphylaxis
B. Asthma
C. Hyperventilation
D. COPD