20-9
20.6.3 Calculated Parameters
Abbreviation Unit Full spelling
URNaEx mmol/24h urine sodium excretion
URKEx mmol/24h urine potassium excretion
Na/K % sodium potassium ratio
CNa ml/24h clearance of sodium
Clcr ml/min creatinine clearance rate
FENa % fractional excretion of sodium
Cosm ml/min osmolar clearance
CH
2
O ml/h free water clearance
U/P osm None urine to plasma osmolality ratio
BUN/Cr None blood urea nitrogen creatinine ratio
U/Cr None urine-serum creatinine ratio
*:BUN/Cr is a ratio under the unit of mol.
20.7 Understanding the Review Window
With the review feature, you can review oxygenation, ventilation, hemodynamic and renal
calculations. The review window for each calculation is similar. Take the hemodynamic
calculations review window for example, you can access it by selecting [Review] in the
[Hemodynamic Calculation] window.
In this review window:
You can select
, or to view more values.
The values that exceed the range are displayed in yellow background. The [Unit] field
displays parameter units. If some parameter values are outside of their normal ranges,
you can view their normal range in the [Unit] field by selecting [Range].
You can review an individual calculation by selecting its corresponding column and
then selecting [Original Calc]. You can record the currently displayed calculations or
perform another calculation is this window.
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