A patient with an acute respiratory infection has trouble breathing. The inspiratory expiratory ratio of such patients is usually 2:1 rather than the normal value of 1:2. Patients with COPD present with barrel chest because they are unable to expire their inhaled air out.
As a result, air accumulates in the chest. Over time the chest adapts to accommodate the increased air in the chest resulting in the specific barrel chest of the patient. Patient with COPD also has high respiratory rates that often exceed 12 breaths per minute. Most of these patients are unable to maintain a good oxygen saturation so their saturation is often below 93%.
The normal i:e ratio is 1:2, meaning that expiration takes twice as long as inspiration. Aratio of 2:1 is seen in clients with copd because inspiration is shorter than expiration. a client with copd typically has a barrel chest in which the anteroposterior diameter is larger than the transverse chest diameter. Aclient with copd usually has a respiratory rate greater than 12 breaths/minute and an oxygen saturation rate below 93%.
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