The sustained maximal inspiration (SMI) maneuver is performed by having the patient take
a. a deep breath and hold it for 3 to 5 seconds before exhaling.
b. a slow deep breath and then forcefully exhaling.
c. a deep breath and, at the peak of inspiration, expanding the chest and taking in a little more air.
d. in a slow deep breath and then exhaling slowly.
A
The SMI maneuver is a method to enhance the lung volumes of postoperative patients. The patient inhales as close to lung capacity as possible and, at the peak of inspiration, the patient holds that volume for 3 to 5 seconds before exhalation.
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