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Author Question: When a freshly cut piece of sodium metal, Na, is dropped into a flask with chlorine gas, a violent ... (Read 129 times) |
The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.
As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
Approximately 500,000 babies are born each year in the United States to teenage mothers.