回复 1楼vitd120的帖子

楼主引用的发生问题的研究都是用老鼠作试验，老鼠与人不同。英国卫生部的疫苗注射指引明确指出无需aspirate，因为该处肌肉没有大的静脉血管：

Insert the needle into the injection site far enough to ensure it will deliver the vaccine

into the muscle and depress the plunger. There is no need to pull back on the plunger

(aspirate) before the plunger is depressed to release the vaccine into the muscle

because there are no large blood vessels at the recommended injection sites

Remove the needle and if there is any visible blood at the injection site, the patient can apply pressure to the site with a piece of gauze or cotton wool.

https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1009174/COVID-19_vaccination_programme_guidance_for_healthcare_workers_6_August_2021_v3.10.pdf

hhren 发表于 2021-08-22 17:11

是的，我还专门和其他医生讨论过这个问题。都觉得胳膊上注射的位子没有什么大血管，不需要aspirate.我给别人打疫苗都会aspirate,大概将近1000个人，碰到唯一一次回血（针头在血管里）。