The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
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Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.
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Everyone has one nostril that is larger than the other.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
An overview of the two stages of photosynthesis: light reactions and the Calvin cycle
The nitrogen cycle. Numbers represent fluxes as 1012 g N per year (data from Schlesinger 1991, after
Defibrillator. Defibrillators are devices that supply a voltage charge to the heart in the hope of r