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Understanding the PageWriter 300pi Predictive Instrument Applications
3-24 Understanding ECG Analysis and the Predictive Instruments Applications
The three ECG features are:
l the presence or absence of pathological or significant Q waves
l the presence and degree of ST segment elevation or depression
l the presence and degree of T wave elevation or inversion
Understanding ACI TIPI Variables
Seven variables are used to predict Acute Cardiac Ischemia. These variables
include four clinical factors and detailed information on three ECG features.
The four clinical factors are:
l the presence or absence of chest pain or pressure, or left arm pain
l whether chest pain or pressure, or left are pain is the patient’s most
important presenting symptom
l patient age
l patient gender
The three ECG features are:
l the presence or absence of pathological or significant Q waves
l the presence and degree of ST segment elevation or depression
l the presence and degree of T wave elevation or inversion
The four clinical factors must be entered by the clinician before a ACI TIPI
analysis can be performed.
The exclusionary cases for both the TPI and ACI TIPI applications are listed
in the Predictive Instrument Physician’s Guide. Please refer to this document
for this information.
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