If hoarseness continues or the cause is unknown , doctors should perform an examination called a laryngoscopy .
如果出现持续性或是不明原因的声音嘶哑,医生应该给你做喉镜检查。
Conclusion : low-dose rui fentanyl can better satisfy the need of the examination , electronic laryngoscopy is safe and reliable , and clinical application .
结论:小剂量瑞芬太尼能较好的满足电子喉镜检查的需要,且安全可靠,值得临床推广应用。
Cervical manipulation during laryngoscopy and intubation requires special precautions .