Mindray VS 8 - Clinical Assistive Applications (CAA); Early Warning Score (EWS); The EWS Display; Accessing the EWS Screen

VS 8/VS 8A Vital Signs Monitor Operator’s Manual 12 - 1
12Clinical Assistive Applications (CAA)
The Clinical Assistive Applications (CAA) function integrates some commonly used
clinical guidelines and tools into the monitor. It puts the currently monitoring parameter
measurements together and provides comprehensive analysis results.
CAA can improve the clinician’s working efficiency. However, it is not directly used for
diagnosis and cannot not replace the clinician’s judgement.
12.1 Early Warning Score (EWS)
The Early Warning Scores (EWS) can help you recognize the early sign of deterioration in
patients based on vital signs and clinical observations. It is based on the “Royal College
of Physicians (2015) National Early Warning Score (NEWS2): Standardizing the
assessment of acute illness severity in the NHS, Report of a Working Party. RCP, London.
Depending on the score calculated, appropriate recommendations are displayed.
The monitor supports the following scores:
■ MEWS (Modified Early Warning Score)
■ NEWS (National Early Warning Score)
■ NEWS2 (National Early Warning Score 2)
■ Custom Score
Custom Score is based on user-defined parameters. It can be a total score or an IPS,
depending on the configuration.
A subscore is given for each parameter based on the measured or entered value. When
all the required parameters are entered or measured, the subscores are added together
to calculate the total early warning score. Each subscore has a color coding to indicate
associated level of risk. When the total score is outside of the thresholds, actions are
recommended. MEWS, NEWS and NEWS2 can give total scores.
MEWS, NEWS and NEWS2 are intended for adult patients only. The patient category
applied to the Custom Score is defined by Mindray Clinical Score Configuration Tool. For
more information, see Mindray Clinical Scoring Config Tool Instruction for Use (P/N: 046-
012986-00).
WARNING
• EWS is not intended for pediatric and neonatal patients.
• The EWS scores and recommended actions are for reference only and cannot
be directly used for diagnostic interpretation.
12 - 2 VS 8/VS 8A Vital Signs Monitor Operator’s Manual
• EWS cannot be used as an prognosis index. It is not a clinical judgement tool.
Clinicians must use their clinical judgement in conjunction with the EWS tool
at all times.
• MEWS and NEWS are intended for adult patients only. NEWS is not applicable
to pregnant woman and COPD (Chronic Obstructive Pulmonary Disease)
patients.
12.1.1 The EWS Display
The following figure shows the EWS screen.
12.1.2 Accessing the EWS Screen
Access the EWS window in any of the following ways:
■ Select the EWS parameter area
■ Select the Main Menu quick key → from the CAA column select EWS.
Take NEWS2 as an example, the EWS screen is shown as follows. Your screen may be
slightly different due to the configuration.
(1) EWS protocol label
(2) The scoring time
(3) Total score. The color of the circle indicates the level of risk.
(4) Risk level indicator. The level of risk increases from top down. The current level is
enclosed by a white square frame.
(5) Subscore area: displays the subscore of each parameter.
(6) Reset: select this button to clear the previous score.
(7) Calculate: select this button to calculate the total score. It is available when all
parameter values used for scoring are obtained automatically.
(8) SpO
2
scale (for NEWS2 only): displays the current SpO
2
scale used for scoring.
Select this area to change to another scale.
(3)
(2)
(1)
(4) (5)
(6)
(7)
(8)