Inspect the External Canal

Gently insert the speculum and inspect the external canal. The external auditory canal is 24 mm long in the adult and is the only skin-lined, blind-ended canal in the body. The canal follows a tortuous course from the external meatus to the tympanic membrane. The techniques previously described are used to straighten the canal. There should be no evidence of redness, swelling, or tenderness, which indicates inflammation. The walls of the canal should be free of foreign bodies, scaliness, and discharge. If a foreign body is seen,

Figure 11-16 External ear canal with large hematoma.
Diabetes 2

Diabetes 2

Diabetes is a disease that affects the way your body uses food. Normally, your body converts sugars, starches and other foods into a form of sugar called glucose. Your body uses glucose for fuel. The cells receive the glucose through the bloodstream. They then use insulin a hormone made by the pancreas to absorb the glucose, convert it into energy, and either use it or store it for later use. Learn more...

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