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→Time at Pressure
===Time at Pressure===
The ''Time at Pressure'' graphs the amount of time spent at a specific pressure.
The ''Time at Pressure'' is a companion graph of the ''Pressure'' graph, using the same data and configuration.<br />
The ''Time at Pressure'' has pressure on the x-axis and time duration (in minutes) on the y-axis.
The following picture is from a CPAP device where the pressure is at a constant eight(8) cmH2O. <br />
The picture contains the OSCAR charts: Event Flags, Pressure, and Time at Pressure.
[[File:TimeAtPressure_CPAP_example.png|thumb|center|1000px|Time at pressure CPAP device]]<br />
The following picture is from a APAP device where there were two events that occured at Pressure Interval 8.6 cmH2O (8.5<= P < 8.7).
A CA (Clear Airway) and a OA (Obstructive) apneas occured during this pressure interval. <br />
These two event are indicated by dashed lines and circles.<br />
The Pressure Interval for 8.6 is highlighted in yellow.
[[File:TimeAtPressure_APAP_example.png|thumb|center|1000px|Time at pressure APAP device]]<br />
A mouse-over event over the ''Time at Pressure'' chart will accentuate the data points.<br />
A mouse-over event for a pressure interval will accentuate its data point in black.
Both ''Events'' and ''SPAN Events'' are supported similar to the Pressure Graph.
Multiple plots for IPAP and EPAP are also supported.<br />
The Pressure graph's configuration menus for '''Plots''' and '''CPAP Overlays''' are used to configure the Time at Pressure graphs.
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=CPAP Algorithims=
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