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2.5 Intended Use
The intended use is to acquire ECG signals from human through body surface ECG electrodes. The
ECG recorded by the electrocardiograph can help users to analyze and diagnose heart
disease.
2.6 Contraindication
Absolute Contraindication
1. Acute myocardial infarction (within 2days)
2. High risk unstable angina
3. Hemodynamic disorder caused by uncontrolled arrhythmia
4. Active endocarditis
5. Symptomatic severe aortic stenosis
6. Decompensated symptomatic heart failure
7. Acute pulmonary embolus or pulmonary infarction
8. Acute noncardiac disorder that may affect exercise performance or be aggravated by exercise (eg,
infection, renal failure, thyrotoxicosis)
9. Acute Myocarditis or Pericarditis
10. Serious Physical Disability which disable to make safe and effective test
11. Without acquiring patient’s permission
Relative contraindications
1.Left main coronary stenosis or its equivalent
2.Moderate stenotic valvular heart disease
3.Electrolyte abnormalities
4.Tachyarrhythmias or bradyarrhythmias
5.Atrial fibrillation with uncontrolled ventricular rate
6.Hypertrophic Cardiomyopathy
7.Patients can not cooperate because of mental impairment
8.High-degree AV block
