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Medical Science Mcqs 5254 MCQs [All-Courses]

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Medical Science is the study of human health, diseases, prevention, and treatment, focusing on diagnosis, patient care, and medical research to improve healthcare outcomes.

All Topics  5254

Carbon monoxide poisoning causes_______________?
A Hypoxic hypoxia
B Oxygen dissociation curve shifts to left
C Cyanosis
D Diffusion capacity of lungs decreases
Correct Answer: Oxygen dissociation curve shifts to left
An important non- respiratory function of lungs is_____________?
A Anion balance
B Sodium balance
C Potassium balance
D Ca+2 balance
Correct Answer: Sodium balance
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
Correct Answer: Total chest wall diameter is increased
Inability of exchange of oxygen through lung tissue if known as____________?
A Anoxic anoxia
B Anoxia
C Histotoxic hypoxia
D Ischemic hypoxia
Correct Answer: Histotoxic hypoxia
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
Correct Answer: 1.1 L
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
Correct Answer: Differential pressure of oxygen in arterial blood
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
Correct Answer: Bind avidly with Hb
Oxygen as an emergency drug is contraindicated in______________?
A Anaphylaxis
B Asthma
C Hyperventilation
D COPD
Correct Answer: Hyperventilation
The quantity of water lost in expired air each 24 hrs is about___________?
A 200 ML
B 400 ML
C 600 ML
D 800 ML
Correct Answer: 400 ML
Which of the following adaptations will be apt to increase the work capacity at high altitude_________________?
A Increased workload, decreasing duration of exercise
B Increased workload, increasing duration of exercise
C Decreasing workload, increasing duration of exercise
D Decreasing workload, decreasing duration of exercise
Correct Answer: Decreasing workload, increasing duration of exercise
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