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Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.
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Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
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An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.
Experiment of Lederberg and Tatum demonstrating gene transfer in E. coli.
Dial-A-Flo in-line device to regulate IV flow.
Solomon's Seal
The Meselson–Weigle experiment
Nuchal Line
The phenotypic and genotypic ratios of a dihybrid cross can be derived using a branched-line method