Biomedical Engineering (BME) 3 Practice Test

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Afrezza and Exubera are two different insulin delivery systems. These two systems both deliver insulin through the lungs.

They deliver insulin under the skin. They deliver insulin through the lungs. They deliver insulin orally. They deliver insulin intravenously.

Correct Answer:

They deliver insulin through the lungs.

Explanation:

Inhaled insulin uses the lungs as the absorption site, letting insulin pass across the alveolar surface into the bloodstream for rapid action. This route bypasses the digestive system and hepatic first-pass metabolism, which helps achieve a quick onset around mealtime and a shorter duration of effect. Afrezza and Exubera are both formulated to be inhaled and absorbed through the lungs, not injected under the skin, swallowed, or given intravenously. When using inhaled insulin, proper inhalation technique and lung health are important, and it isn’t suitable for everyone.

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