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Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

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Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

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The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

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A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Medical assistants can quickly pull up a patient record when a phone call is received. Medical assistants can quickly pull up a patient record when a phone call is received.
Coding for immunizations. Coding for immunizations.
A medical assistant wearing PPE—gown, face shield, and gloves. A medical assistant wearing PPE—gown, face shield, and gloves.
A medical assistant should present a neat appearance and make it a habit to wear a smile. A medical assistant should present a neat appearance and make it a habit to wear a smile.
Computerized spirometry is used in medical office settings as well as in hospitals and other medical ... Computerized spirometry is used in medical office settings as well as in hospitals and other medical ...
Pearson's Comprehensive Medical Assisting Pearson's Comprehensive Medical Assisting
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