Guidelines for the proper use of the stethoscope include which of the following?

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The earpieces and binaurals should be angled toward your nose.This angle permits the natural direction of the ear canal to be accessed,and sounds will be directed toward the adult tympanic membrane.The diaphragm,not the bell,should be placed firmly against the skin surface.The rubber or plastic tubing should be between 12 to 18 inches long.Stethoscopes with longer tubing will diminish the body sounds that are auscultated.The diaphragm transmits high-pitched sounds such as breath,normal heart,and bowel sounds.The bell transmits low-pitched sounds such as bruits and some heart murmurs.

Guidelines for the Proper Use of the Stethoscope Include Which