Feeling or emotion, one of the three aspects of the mind, the others being conation
(willing or desiring), and cognition (awareness). They may work as a whole, but any one
may dominate any mental process.
A specially designed airfilled floating mattress bed designed to prevent development
and/or alleviate and facilitate healing of bed sores and certain physical problems
associated with long term restriction to bed, especially in a paralyzed and/or coma state.
Air leak syndromes
A spectrum of diseases with the same underlying pathophysiology. Air leaks
involve overdistension of the alveolar sacs or terminal airways, leading to disruption of
airway integrity and dissection of air into the surrounding spaces. The pulmonary air leak
syndromes include pneumomediastinum, pneumothorax, pulmonary interstitial emphysema, and
Alveolar-arterial oxygen gradient (A-a DO2)
The difference between the amount of oxygen in the arterial blood and the amount of oxygen
actually delivered to the lungs. Normally this value is less than 100 Hg but in the
context of severe respiratory disease it may exceed 600 mm Hg.
Inflammation of the alveoli.
Alveolus (sg.), Alveoli (pl.)
The tiny spherical air exchange sacs in the lung, located at the ends of
your smallest airways (bronchiole). The alveoli are surrounded by capillaries (small blood
vessels), which are the blood vessels bringing blood into interior of the lung that is
depleted in oxygen. The exchange of oxygen and carbon dioxide takes place through a
membrane separating the alveoli and capillaries. The alveoli are lined with and
supported by tissue called the interstitium.
Partial or complete memory loss due to some precursor event. anterograde
amnesialoss of memory of recent events after the event; retrograde amnesialoss
of memory for past events before the event.
Ante or antero
Prefix meaning before or in front of, e.g. anterior (in front of, the front surface of)
Incomplete development of tissue, absence of growth.
Incapable of growing new tissue.
Arterial Blood Gas Test
The test that tells the health professional how your lungs are working. It is very
sensitive to changes in breathing patterns and is used to establish treatment for your
condition and qualify for home oxygen therapy. The main function of the lung is to
bring fresh oxygen to the body tissues and get rid of carbon dioxide. The arterial
oxygen and carbon dioxide pressure levels are measured in millimeters of mercury.
The percent of oxygen that is carried in the blood is also measured. The pH tells us if
the blood has too much of the acid component (carbon dioxide) or too much base
Arterial oxygen tension (PaO2)
The partial pressure of arterial oxygen.
Generally, the act of drawing in air/to breathe (inspiration); often more
specifically means inhaling (inspiration) of stomach contents which have been projected
back up through the esophagus and into the mouth and/or throat, or other foreign
substances (smoke inhalation particulate matter). Aspiration is one of the three leading
precipitating factors in ARDS cases.
An obstructive lung disease that is characterized by airway narrowing and
spasm. Wheezing is often heard as the air tries to move through constricted airways.
In between asthma attacks, a person may have perfectly normal lung function values.
Once an attack starts, flow rate values (speed at which air moves through the lung) will
be greatly reduced. Peak flow meters can monitor your flow rate daily so you will be
warned of any decrease in flow rates before you feel symptoms. Your airways are very
sensitive and many things can bring on an attack, such as irritants in the air, allergies
and emotions. Once you can identify those things that will trigger your airways to go into
spasm, you will be able to avoid them!
No air in the alveoli, lung solid.
Without tone; weak (atonia, atony, atonicity).