E80/E70 Digital Electrocardiograph User’s Manual
5-2
L: Waveform info M: 1 mV calibration signal
A. Patient info contains:
NO. (ID), Name, Age, Gender, height, weight, Race, Room NO. and medicine.
B. Measurement information includes:
——HR (heart rate：Calculated on the basis of the entire 10second
recording and shown as number of beats per minute.) ;
——P time limit (average of P wave time limit of average heart beat of
many leads) ;
——PR time limit (average of PR interphase of average heart beat of
many leads) ;
——QRS time limit (average of QRS wave time limit of average heart
beat of many leads) ;
——QT/QTC interphase (average of QT interphase of average heart
beat of many leads/ normalized QT interphase) ;
——P/QRS/T ECG axis (ECG axis refers to the dominant direction of
average integrated ECG vector on face) ;
——RV5/SV1 amplitude (maximum amplitude in R and R’waves of
average heart beat of lead V5/ maximum of absolute amplitude value in S
and S’waves of average heart beat of lead V1) ;
——RV5+SV1 amplitude (sum of RV5 and SV1) ;
——RV6/SV2 amplitude (maximum amplitude in R and R’waves of
average heart beat of lead V6/ maximum of absolute amplitude value in S
and S’waves of average heart beat of lead V2) .
C. Diagnosis information: Result of automatic diagnosis is displayed.
Caution:
The users should pay attention to the following in patient info.:
Default of age is 35 years old. Default of gender is male.
Please input age and gender.
The users should pay attention to the following aspects during
measurement and analysis of ECG waveform:
When the interference of EMG or AC power is comparatively big, the
identification of P wave and Q wave is unreliable sometimes; due to
baseline drift, the identification of ST section and T wave is possibly
unreliable.
The terminal positions of S wave and T wave are curved and unclear,
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