After actuating a metered dose inhaler with a holding chamber, what should the patient be in-structed to do?
a. Take a large breath and hold it for at least 5 sec.
b. Continue to breathe through the device for three breaths.
c. Immediately exhale as fast and as much as possible.
d. Take one quick breath and remove the holding chamber.
ANS: B
With normal breathing, actuate the pMDI once and have the patient breathe through the device for three to seven breaths (three breaths for adults and seven breaths for infants).*
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