After inhalation of an aerosol by a spontaneously breathing patient with no artificial airway,a proportion of the aerosol does which of the following?
1)Impacts in the oropharynx
2)Is swallowed
3)Is absorbed by the lungs
4)Is exhaled

Question

Quizplus · Accepted Answer

After inhalation of an aerosol by a spontaneously breathing patient with no artificial airway,a proportion of the aerosol impacts in the oropharynx and is swallowed,and a proportion is inhaled into the airway.Because a portion of an inhaled aerosol is swallowed,the inhalation route leads to gastrointestinal absorption,as well as lung absorption of the drug.The traditional percentages given for stomach and airway proportions,based on Stephen Newman's classic measures in 1981 with an MDI,are approximately 90% and 10%,respectively.

After Inhalation of an Aerosol by a Spontaneously Breathing Patient