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Clinical Investigation

Gary, an active 8-year-old, was playing by crawling through the underbrush in the surrounding hills while his parents were picnick-ing.When he returned to them he was covered in dirt and had a bloody thumb, which he said had been cut by an unseen bit of barbed wire that had been left on the ground.They bandaged the thumb, but, while he was eating a sandwich a wasp stung him on his injured hand! It was his first bee sting, and this event provided a tearful conclusion to the family's outing.The next day, the pain of the cut and bee sting subsided, but Gary developed a rash on his abdomen.

The family physician prescribed a cortisone cream for Gary's rash and said that antihistamines wouldn't help the rash.The doctor told Gary's mom not to worry about the cut, because the boy had fortunately been given a tetanus vaccine only 6 months earlier. However, Gary was stung by a bee 2 months later, and this time developed a severe swelling.The doctor prescribed antihistamine treatment for this, which did resolve the swelling.

How can you explain Gary's symptoms and medical treatment?

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Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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