A patient with myasthenia gravis will have lung volume and capacity findings that show:

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Quizplus · Accepted Answer

Myasthenia gravis is a type of neuromuscular disease that affects the skeletal muscles responsible for breathing. The weakness of the muscles can lead to a restrictive pulmonary pattern, which means that the lung volume and capacity findings will show decreased lung volumes, reduced tidal volume, and a decreased inspiratory capacity. This may result in shallow breathing and also require respiratory support. Upper airway obstruction may contribute to myasthenic crises, but this is not a characteristic feature of the disease in general. Ascending leg muscle weakness is not related to the pulmonary function of patients with myasthenia gravis.

A Patient with Myasthenia Gravis Will Have Lung Volume and Capacity