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| F |
Fraction - The number of
moles (gram molecular weights) of a component gas in a
gas mixture divided by the total number of moles of mixture.
Alternatively, it can be expressed as the ratio of the
partial volume of the component gas to the total volume
of the mixture. It is numerically equal to the ratio of
the partial pressure of the component gas to the total
pressure of the mixture. |
| F |
Fahrenheit Temperature scale
that assigns the value 32 for the freezing temperature
of water and 212 for its boiling point. |
| FDA |
United States Food and Drug
Administration |
| FIO2 |
Fraction of Inspired Oxygen
(See F [Fraction]) |
| Flexible Bronchoscope |
(See Bronchoscope.) |
| Flow-By |
Flow introduced into the
circuit typically for use in triggering the ventilator
based on the flow demand of the patient, rather than pressure.
The term "Flow-By" was likely introduced in
the Puritan Bennett 7200 series ventilators. Flow triggering
is usually much more sensitive than pressure triggering
(see also Bias
Flow). |
| Flow-Control Mode |
A mode of ventilator operation
in which the ventilator attempts to deliver a preset flow
waveform with a specified peak flow during inspiration. |
| Fraction |
(See F [Fraction])
|
| Frequency
(of breathing) (fb) |
Number of breath cycles
per unit time. Typically, the unit of time is minutes
(conventional ventilation) but can be seconds for high
frequency ventilation. |
