52
ENGLISH
Appendix
General Knowledge of ECG
Normal sinus rhythm: In sinus conditions, S heart rate is in the range of 60 to 100 times per
minute and the rhythm is regular. P wave is normal and each one is followed by a QRS
wave. P-R interval: 0.12~0.20s;
QRS wave: 0.06~0.10s; No ectopic ECG activity.
Symptom: Sinus rhythm, heart rate: 60~100bpm
Indication: Normal
Figure 1 Normal ECG Waveform
Several abnormal ECG waveforms
1) Tachycardia: The heartbeat becomes faster. Tachycardia is determined by the rhythm of
the heart, the average rhythm beats faster than 100 times a minute is considered as
Tachycardia. The result description “Suspected fast beat” in this device may be doubted as
Tachycardia.
Symptom: heart rate>100bpm
Indication: It may occur with the normal people who have these physiology
conditions: rage, fatigue, smoking, drinking too much wine, excessive coffee and strong
tea, etc.
Pathology: anemia, Hyperthyroidism, blood hypoxia, myocarditis, hypokalemia, fever,
influence of some medication (such as atropine, epinephrine etc.).
Suggestion: If it belongs to pathology condition, please go to hospital.
Figure 2 Tachycardia Waveform
2) Bradycardia: The heartbeat becomes more slowly. It is determined by the rhythm of the
heart, the average rhythm is less than 60 beats per minute is considered as Bradycardia.
The result description “Suspected slow beat” in this device may be doubted as Bradycardia.
Symptom: heart rate<60bpm
Indication: It occurs when healthy people fall asleep, and it can be found in athlete (or those
who love doing sports frequently), old people, or vagus excitement person.
Pathology: Sick sinus syndrome, Ischemic heart disease,Cardiomyopathy, intracranial
hypertension, increased hypokalemia, Low temperature, period of convalescence of acute
Summary of Contents for CARDIO-B
Page 30: ...30 ENGLISH 1 Overview 1 1 Appearance Figure 1...
Page 56: ......
