771. Deficiency of which of the following is responsible for pellagra
A. Thiamine
B. Pyridoxine
C. Folate
D. Riboflavin
E. Niacin

772. Massive collapse of one lung:
A. Can be caused by mucus plugging of small bronchi.
B. Manifests as complete alveolar collapse of the entire lung
C. Is characterized by increased negative pressure within alveoli & development of pulmonary oedema.
D. Pulmonary flow through the collapsed lung is slightly reduced
E. Since the contralateral lung is intact, mean Sa02 remain unchanged.

773. Causes of pulmonary oedema include:
A. Left ventricular failureā€¢
B. Massive trauma / shock
C. Mycoplasmal pneumonia
D. Drowning
E. All of the above

774. In order to cause acute pulmonary oedema, pulmonary capillary pressure must be raised above:
A. 7mmHg
B. 14 mmHg
C. 21 mmHg
D. 28mmHg
E. 35 mmHg

775. Which of the following pairing of pulmonary disease & their pathology is TRUE?
A. Chronic bronchitis – smooth muscle hyperplasia & excessive mucus with inflammation.
B. Emphysema – Air space enlargement with wall destruction
C. Bronchiectasis – Mucus gland hyperplasia & hypersecretion
D. Asthma – Airway dilation & scarring
E. All of the above

776. Obstructive airway disease is characterized by:
A. FEVl/VC; l’ Lung volumes; Flow rate
B. Normal FEVlIVC ; l’ Lung volumes ; Flow rate
C. l’ FEVl/VC ; Lung volumes ; Flow rate
D. FEVl/VC ; Lung volumes ; Flow rate
E. FEVl/VC ; normal lung volumes; l’ Flow rate

777. Which of the following regarding emphysema is FALSE?
A. Centrilobular emphysema predominantly affects upper 2/3 of the lung.
B. Loss of alveolar wall lead to increased pulmonary resistence
C. Effective gas exchange is reduced to 1110 of normal.
D. Cor pulmonale commonly occur early
E. Respiratory infection occur less commonly than chronic bronchitis

778. In emphysema, there is an excess of:
A. a 1 antitrypsin
B. Anti-elatase
C. Elastase
D. All of the above
E. None of the above

779. Which of the following pairing of emphysema subtype & pathology is FALSE?
A. Compensatory emphysema – alveolar dilation without septal wall destruction
B. Senile emphysema – larger alveolar ducts & increased size of alveolar with age.
C. Interstitial emphysema – air collection in subcutaneous tissue & mediastinum
D. Bullous emphysema large subpleural bleb usually located at apex of lung
E. All of the above

780. Risk factors for interstitial emphysema include:
A. Positive pressure ventilation
B. Airway obstruction
C. Fractured ribs
D. Cough
E. All of the above

Leave a Reply