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.Management Sciences
Category: Respiratory System
What effect does hyperventilation have on the oxygen binding affinity of hemoglobin ?
A. P50 and oxygen affinity decrease
B. P 50 and oxygen affinity increase
C. P 50 decreases and the oxygen affinity increases
D. P50 increase and the oxygen affinity decreases
Kussmamul’s respiration occurs in response to_______________?
A. Decrease in pH of blood
B. Increase in pH of blood
C. Obstructive pulmonary disease
D. Carbon monoxide poisoning
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
The type of hypoxia present in high attitude is_____________?
A. Anemic Hypoxia
B. Hypoxic Hypoxia
C. Stagnant Hypoxia
D. Histotoxic Hypoxia
Smoking causes_____________?
A. Ciliary motility
B. Cellular hyperplasia
C. Mucous secretion
D. All of the above
Shift of the oxygen dissociation curve to right is caused by the following factors EXCEPT_______________?
A. Increased 2,3 BPG
B. Increased temperature
C. Increased concentration of carbon – di – oxide
D. Increased concentration of oxygen
Surfactant is secreted by_____________?
A. Pnemocyte I
B. Pnemocyte II
C. Goblet cells
D. Pulmonary vessels
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
In which of the following diseases would you expect to find an increase in thickness of the respiratory membrane ?
A. Emphysema
B. Asthma
C. Pulmonary artery thrombosis
D. Skeletal abnormalities of the chest
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