靜脈輸液時，氣泡會隨血流經右心進到肺部，慢慢被吸收或排出，很小的氣泡不會造成大的損害。大量可引起急性肺氣栓………。
動脈輸液應該特別注意控製氣泡，很小的氣泡也會造成心、腦、肝、腎局部缺血…………
曾有種死刑，向動脈注入50CC以上的氣體…………、
中國的醫護人員被再三訓導：一定要排除氣泡再注射，無論肌肉還是脈管。
美國的醫護則不嚴格要求排空針頭、IV輸液管內的氣體。但患者提出要求，應該及時處理，這屬於管理層麵的問題
英文參考：
https://www.healthline.com/health/air-embolism
https://nursing.ceconnection.com/ovidfiles/00129804-201211000-
00007.pdf;jsessionid=EE51A38947255BC7A41E1E1B37D47428
RECOMMENDATIONS FOR CLINICAL PRACTICE
Although clinical consequences of air infusion are rare, patient risk can be minimized in 2 ways: by appropriate design of infusion systems and by adherence to the highest standards of clinical practice. Adult infusion systems should be designed to prevent infusion of volumes of air >50 μL in normal use and to prevent infusion of volumes of air >1 mL in failure modes. For neonatal and infant use, systems should be designed to minimize the volume of air infused to the lowest level possible, compatible with device function. Air infusion volumes of 10 μL should not be exceeded even in failure mode. Although the IEC standards apply to intravenous pumps, similar considerations apply to gravity infusion systems. Good clinical practice includes aspiration of air from stopcocks and needle-free connectors before injection and expelling all air from syringes. Most important, even small volumes of air should be considered as potentially consequential. Although there are no data available from adequately designed clinical studies, the safest available approach is the use of an air elimination filter. Available from several manufacturers, air elimination filters can function in any orientation and also remove bacteria and particulates from the infusion.
