Search results
Results from the WOW.Com Content Network
Total dead space (also known as physiological dead space) is the sum of the anatomical dead space and the alveolar dead space. Benefits do accrue to a seemingly wasteful design for ventilation that includes dead space. [1] Carbon dioxide is retained, making a bicarbonate-buffered blood and interstitium possible.
The Bohr equation, named after Danish physician Christian Bohr (1855–1911), describes the amount of physiological dead space in a person's lungs. This is given as a ratio of dead space to tidal volume. It differs from anatomical dead space as measured by Fowler's method as it includes alveolar dead space.
= p A O 2, p E O 2, and p i O 2 are the partial pressures of oxygen in alveolar, expired, and inspired gas, respectively, and VD/VT is the ratio of physiologic dead space over tidal volume. [ 9 ] Respiratory quotient (R)
The Shunt equation (also known as the Berggren equation) quantifies the extent to which venous blood bypasses oxygenation in the capillaries of the lung.. “Shunt” and “dead space“ are terms used to describe conditions where either blood flow or ventilation do not interact with each other in the lung, as they should for efficient gas exchange to take place.
In medicine, the ratio of physiologic dead space over tidal volume (V D /V T) is a routine measurement, expressing the ratio of dead-space ventilation (V D) to tidal ventilation (V T), as in physiologic research or the care of patients with respiratory disease. [1]
Safe treatment shows Alzheimer’s potential. One of the challenges of treating Alzheimer’s is finding therapeutics that can cross the blood-brain barrier and get into the brain. Xenon gas can ...
In 1989, the National Aeronautics and Space Administration (NASA) published a promising study claiming that houseplants purify indoor air. Its results suggested that certain common indoor plants ...
The first symptoms of kidney failure are silent. Failing kidneys can’t remove extra fluid from the body, nor can they filter molecules like urea, which can be toxic in high dosages, from the blood.