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目的：研究一种新的导管法测定肺循环血流量。方法：分离右侧颈外静脉，将塑料导管自右侧颈外静脉插入，经上腔静脉、右心房和右心室插入肺动脉。用上海产ＳＪ—４２型四导生理记录仪记录生理参数。结果：肺循环血流量可按公式ＱＰ＝ＭＰＡＰ·△ＱＭＰＡＰ－ＭＰＡＰ计算，式中△Ｑ是每分钟自肺循环流入容量测定计的血量，算得的ＱＰ＝２９．６２±３．７３ｍｌ／ｍｉｎ，在大鼠的肺循环血流量正常范围之内。结论：该方法精确而且操作简便
Objective: To study a new catheter method for measuring pulmonary blood flow. Methods: The right external jugular vein was isolated. The plastic catheter was inserted into the right external jugular vein and inserted into the pulmonary artery via the superior vena cava, right atrium and right ventricle. Shanghai SJ-42-type four-channel recording with physiological recording physiological parameters. Results: The pulmonary circulation blood flow can be calculated according to the formula QP = MPAPΔQMPAP-MPAP, where △ Q is the blood volume flowing into the volumetric meter from the pulmonary circulation every minute, the calculated QP is 29.62 ± 3.73ml / min, Within the normal range of pulmonary blood flow in rats. Conclusion: This method is accurate and easy to operate