某女性患者，75岁，68kg，硬膜外麻醉下行右侧股骨头置换术。既往患高血压20年，冠心病12年，口服施慧达和拜阿司匹林治疗。硬膜外穿刺困难，穿刺过程中患者无异感。术后采用0.125%罗哌卡因镇痛。观察4小时后，患者左腿完全无肌力，右腿运动能力下降，应作何处理（）
Usually, one bar of service on your phone means you’re receiving poor signal because you’re too far from thenearest cell toweror something is blocking the signal from getting to your device. As you read above, how “poor” a one-bar signal actually is will depend on your device, but ...
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Some cellular providers have better coverage than others and coverage varies in different parts of the country. A fast busy signal might mean that your phone can't connect to the network because you're too far from the nearest cell tower. Check the links in "Resources" to learn more about ...
What does malware do? Every different variety of malware causes problems in its own way, although most rely on some kind of user action. Some deliver malicious code via a link or executable file over email, social media, SMS, or instant messaging. ...
To this day, I still remember my parents’ cell phone numbers … but that’s about it. Mnemonic devices are not only great ways to remember numbers for those emergency situations where you don’t have access to your phone but also useful when it comes to learning and writing the ...
Rachel Hisle is a home services editor at U.S. News & World Report where she specializes in cell phone plans and hearing aids coverage, helping readers make important communications-related purchase decisions. She has been at U.S. News since 2021 and has over five years of experience in re...
While the mobile phone is the world’s most popular media device, it is actually not one single medium, but is effectively used as a different medium by different user groups. The article characterizes polymodal differences in mobile apps usage among different user groups, including gender, educat...
Electronics How does the walkie-talkie feature on a Nextel phone work? Electronics What is the difference between analog and digital cell phones? Electronics How the Google Phone Works Advertisement How 4G Works By: Nathan Chandler This is a 4G/LTE cell site in Sweden, which has frequently ...
What does GSM mean? GSM stands for “Global Standard for Mobile Communications,” and it’s essentially the technology that powers your mobile phone’s network. It was first implemented in Finland way back in 1991 and now holds over 90% market share.* Most wireless companies operate on a GS...