Of note, if the patient is bedfast, complete evaluation of respiratory efficiency is often less than optimal because chest expansion is not always symmetric and percussion notes may be less resonant.

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Liz Simmons is an education staff writer at Forbes Advisor. She has written about higher education and career development for various online publications since 2016. She earned a master’s degree in ...

Using accessory muscles implies that the forced expiratory volume in 1 second (FEV1) is decreased to 30% of normal, which is usually between 1.0 and 1.5 liters per second. In such cases, a sitting ...

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