Another experimental device is a facemask that provides resistance when the individual inhales but not during exhalation.
The child then inhales a drug that widens the air passages (a short-acting bronchodilator) and the doctor takes another measurement of the lung capacity.
The patient either sits in a chair or sits upright in bed and inhales then pushes the abdomen out to force maximum amounts of air into the lung.
The patient either sits in a chair or sits upright in bed and inhales, pushing the abdomen out to force maximum amounts of air into the lung.
Lead poisoning occurs when a person swallows, absorbs, or inhales lead in any form.