|
|
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).
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.
Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.
Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
![The vulva, sagittal section illustrating how the labia majora and labia minora cover and protect the](https://biology-forums.com/gallery/47/medium_14755_28_08_12_1_48_05_8251355.jpeg)
![The yellow, blue, and green sections of the Emergency Response Guidebook (ERG). The yellow section ...](https://biology-forums.com/gallery/33/medium_380798_24_08_17_3_22_01_336501911.jpeg)