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Summary 278 Review Activities 281 Related Websites 282

Clinical Investigation

Ed is a 45-year-old man who goes to the doctor complaining of severe ear pain and reduced hearing immediately after disembarking from an international flight. It is apparent that Ed has a bad head cold, and the doctor recommends that he take a decon-gestant. He further recommends that Ed come back after the cold is better for an audiology test, if his hearing has not improved by then.While talking to the doctor, Ed complains that he can't see print very clearly anymore, even though he's never worn glasses. However, he tells the doctor that his distant vision, and ability to drive, are still fine.

What may have caused Ed's ear pain and reduced hearing? What may be responsible for his impaired ability to see print?

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Blood Pressure Health

Blood Pressure Health

Your heart pumps blood throughout your body using a network of tubing called arteries and capillaries which return the blood back to your heart via your veins. Blood pressure is the force of the blood pushing against the walls of your arteries as your heart beats.Learn more...

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