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The correct option is (C) Residual lung volume
When assessing an older adult, the nurse anticipates an increase in residual lung volume.
What do you mean by residual volume in lungs?
The amount of air still in the lungs following a maximally powerful expiration is known as residual volume (RV). To put it another way, it is the volume of air that the lungs cannot permanently expel, leaving the alveoli open.
For breathing to occur and for healthy lung function, residual lung volume is required. Additionally crucial for minimizing significant variations in respiratory gases oxygen and carbon dioxide is the air that stays in the lungs.
Two opposing elements compete to define residual volume.
• Residual volume tends to be reduced by the force of the expiratory muscles and the pull of the lungs inward.
• The draw of the chest wall in an outward direction tends to raise the residual volume.
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The complete question is:
“When assessing an older adult, the nurse anticipates an increase in which component of respiratory status?
A) Vital capacity
B) Gas exchange and diffusing capacity
C) Residual lung volume
D) Cough efficiency”