MRCP UK EXAMINATIONS

RESPIRATORY

BRONCHIECTASIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If someone experiences a loss of intrapleural pressure due to a puncture, what will occur?
A
Breathing will stop.
B
Sudden exhalation will occur.
C
Sudden inhalation will occur.
D
The lung will collapse.
Explanation: 

Detailed explanation-1: -Intrapleural pressure increases, and lung volume decreases. is a pneumothorax causing a progressive rise in intrapleural pressure to levels that become positive throughout the respiratory cycle and collapses the lung, shifts the mediastinum, and impairs venous return to the heart.

Detailed explanation-2: -There is a loss of intrapleural negative pressure that can result in a lung collapse. Due to this there is a decrease in vital capacity as well as a decrease in PaO2 which is the main consequence of a pneumothorax.

Detailed explanation-3: -A punctured lung occurs when air collects in the space between the two layers of the tissue lining your lung. This causes pressure on the lungs and prevents them from expanding. The medical term is known as pneumothorax.

Detailed explanation-4: -A collapsed lung occurs when air escapes from the lung. The air then fills the space outside of the lung between the lung and chest wall. This buildup of air puts pressure on the lung, so it cannot expand as much as it normally does when you take a breath. The medical name of this condition is pneumothorax.

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