The sinus aroused in interest accelerates _'s general knowledge of reason that is produced

The sinus aroused in interest accelerates _'s general knowledge of reason that is produced
1.Physiological factor: Physical exertion, excited and gorging on, drinking the strong tea, drinking coffee, smoking, drinking etc. of normal people, make the sympathetic nerve excited, the heart rate is accelerated.

2.Pathologic factor:
(1)In heart failure: The one especially in heart failure is in early days, the heart rate is being often increased fast.
(2)The thyroid gland function is hyperfunction: Most first overbearing patients have sinus nature tachycardia, the heart rate, generally in 100- 120 times min, the heart rate of the serious one can reach for 120- 140 times min.
(3) Acute myocardium infarction: In the course of disease of acute myocardium infarction, the incidence of sinus tachycardia can be up to 30%- 40%.
(4)Shock: Shock can cause sinus tachycardia, the heart rate can reach for 100 times above min in slight shock; Heart rate quick at the severe shock, can greater than 120 times min.
(5)Acute myocarditis: Most patients can present and can not raise proportional sinus tachycardia with the body temperature.
(6)Other organic heart disease: Can present sinus tachycardia.
(7) After anaemia, generating heat, infecting, oxygen deficiency, autonomic nerve function disorder, openheart surgery, can present sinus tachycardia.
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