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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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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

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Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Shortly after his death, George Washington had already become myth—part Moses, part angel—in this wo Shortly after his death, George Washington had already become myth—part Moses, part angel—in this wo
A medical assistant performs a spirometry test using electronic health record software. A medical assistant performs a spirometry test using electronic health record software.
Source Regions: Air Masses Source Regions: Air Masses
Electrophoresis gel in a densitometer. (a) The green light from the slit light source is visible ... Electrophoresis gel in a densitometer. (a) The green light from the slit light source is visible ...
Open Faced Ham Sandwich Open Faced Ham Sandwich
A pipe that is 0.46 m long and open at both ends vibrates in the second overtone with a ... A pipe that is 0.46 m long and open at both ends vibrates in the second overtone with a ...
Video: ATPase function - membrane transport, contractile proteins and synthesis

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