摘要
目的探索二手烟对大鼠的血压、心率和呼吸频率的影响,为揭示二手烟对心血管系统以及呼吸系统的危害提供依据。方法使用无损伤血压测量仪测量每只大鼠吸二手烟前后的心率、血压,做前后对比;肉眼测量大鼠吸二手烟前后的呼吸频率,做前后对比。结果吸入二手烟之后,1号和2号大鼠心率加快,呼吸频率加快,血压降低;3号大鼠心率加快,呼吸频率减慢,血压降低;4号大鼠心率减慢,呼吸频率减慢,血压降低。结论吸入二手烟导致大鼠血压降低;吸入时间在25min以内会导致呼吸频率加快,25min以后则导致呼吸频率减慢;吸入时间在35min以内会导致心率加快,35min以后则导致心率减慢。
Objective To understand the effect of second-hand smoke to blood pressure,heart rate and respiratory frequency of rats,and provide the basis in revealing the harm of second-hand smoke to cardiovascular system and respiratory system.Methods Before and after exposing to second-hand smoke,heart rate and blood pressure of rats were measured using noninvasive blood pressure instrument,and their respiratory frequency by naked-eye respectively.Results After inhaling second-hand smoke,No.1 and No.2 of rats had accelerated heart rate and respiratory frequency,at the same time lowered blood pressure;rat No.3 had accelerated heart rate,decreased respiratory rate and blood pressure;rat No.4 had decreased heart rate,respiratory rate and blood pressure.Conclusion When the rats inhale second-hand smoke,blood pressure can decrease,and respiratory rate speed up within 25 minutes,but slow down after 25 minutes;meanwhile,heart rate speed up within 35 minutes,but slow down after 35 minutes.
出处
《实验与检验医学》
CAS
2012年第2期151-152,199,共3页
Experimental and Laboratory Medicine
关键词
二手烟
危害
血压
心率
呼吸频率
Second-hand smoke Hazard Blood pressure Heart rate Respiratory frequency Second-hand smoke Hazard Blood pressure Heart rate Respiratory frequency
