Medical MCQ - A patient inhales a tidal volume of 500 mL. The intrapleural pressure was measured as - 4 cm of water before inspiration and - 9 cm of water after inspiration. Calculate the pulmonary compliance in this patient:

A patient inhales a tidal volume of 500 mL. The intrapleural pressure was measured as – 4 cm of water before inspiration and – 9 cm of water after inspiration. Calculate the pulmonary compliance in this patient:

0.1 L/cm

0.3 L/cm

0.2 L/cm

0.4 L cm

Question Category:

Physiology

Correct Answer:

0.1 L/cm

Description:

Answer- A. 0.1 L/cmThe pulmonary compliance in this patient is 0.1 L/cm H2O.Measure of the lung's ability to stretch & expand (distensibility of elastic tissue).Pulmonary surfactant increases compliance by decreasing the surface tension of water.Pulmonary compliance = DV/ DB

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