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| C |
Celsius (Centigrade) - Temperature
scale that assigns 0 to the freezing point of water and
100 to its boiling point. |
| Carbon Dioxide |
CO2 - Produced by the body's
metabolism; transported by the blood to the lungs through
which it is eliminated by ventilating of the lungs. |
| CCU |
Depending on the context,
either Critical Care Unit or Cardiac Care Unit. |
| Circuit |
(See
Patient Circuit.) |
| Clark Electrode |
Electrochemical device sensitive
to PO2 of oxygen contained in blood. |
| cm H2O |
Centimeters of Water - unit
of pressure. |
| Compliance (C), also
called Static Compliance (Cst) |
The change of volume divided
by the associated change of pressure across a purely elastic
structure, or the same ratio measured when a structure
that contains resistance and/or inertance is completely
static before and after the changes occur. Mathematically,
the slope (constant of proportionality) of a linear static
pressure difference - volume relation. |
| Control Mode |
(See CV-Controlled
Ventilation.) |
| Control Panel |
location of the primary
means of directly adjusting the function of a device. |
| Controlled
Ventilation |
A mode of ventilator operation
in which machine breaths are delivered at preset intervals. |
| COPD |
Chronic Obstructive Pulmonary
Disease - Ex.: Emphysema, Asthma |
| CPAP |
Continuous Positive Airway
Pressure - A mode of ventilator operation in which the
airway pressure remains above ambient during spontaneous
breaths. |
| CRF |
Chronic Respiratory Failure
- Long standing inability to eliminate carbon dioxide
through the lungs. |
| CV |
(See Controlled
Ventilation.) |
| Cycling Pressure |
That pressure which, when
reached in the breathing circuit, causes the ventilator
to cycle from one phase to another, e.g., from inhalation
to expiration or vice versa. |
