血氧监测仪您用对了吗？| 科普时间
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">近年来，<span style="color: black;">非常多</span>人购买了血氧监测仪，方便在家<span style="color: black;">自动</span>监测身体<span style="color: black;">是不是</span>缺氧。血氧监测仪是利用肢端毛细血管中含氧血红蛋白和脱氧血红蛋白对光谱吸收差异<span style="color: black;">很强</span>的原理，来确定含氧血红蛋白的占比，<span style="color: black;">因此呢</span>血氧饱和度是以百分比来<span style="color: black;">暗示</span>。例如，测得数值为95%，<span style="color: black;">暗示</span>血管内95%的血红蛋白携带了氧气。</span></p>
<div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://p3-sign.toutiaoimg.com/tos-cn-i-axegupay5k/c151f79230a84a3c88eee2fa65b4aada~noop.image?_iz=58558&from=article.pc_detail&lk3s=953192f4&x-expires=1726089946&x-signature=BgAKCEmtIhPwrkzNU6kQe44niR0%3D" style="width: 50%; margin-bottom: 20px;"></div>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">通常</span><span style="color: black;">来讲</span>，血氧监测仪会<span style="color: black;">表示</span>两个数值，分别为脉搏（PR）及血氧饱和度（SPO2）。PR<span style="color: black;">表率</span>每分钟脉搏的次数，人体正常的脉率为60~100次/分。人体正常的血氧饱和度为95% ~100%（高海拔地区因氧气稀薄，血氧饱和度正常范围会有所降低）。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">除以上两个数值之外，血氧监测仪还会<span style="color: black;">表示</span>一条波形曲线。该曲线为血氧饱和度波形，随脉搏会呈现规律、稳定、高低不一的潮汐<span style="color: black;">浪花</span>形状。该曲线<span style="color: black;">表率</span>指端与仪器接触良好，数据可信度较高。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">血氧监测仪有台式、腕式、手持式、指尖式等，其中指尖式是家中最常用的类型，<span style="color: black;">亦</span>叫指脉氧监测仪。<span style="color: black;">一般</span><span style="color: black;">选取</span>食指、中指和无名指进行监测，数值在95%以上为正常，<span style="color: black;">倘若</span><span style="color: black;">长期</span><span style="color: black;">小于</span>95%则可能存在缺氧，需要去医院<span style="color: black;">检测</span>。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">在<span style="color: black;">运用</span>血氧监测仪时，还需注意以下这些<span style="color: black;">状况</span>。</p>
<strong style="color: blue;"><span style="color: black;"><span style="color: black;">第1</span>，</span></strong><span style="color: black;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">涂抹指甲油会影响读数，指甲过长<span style="color: black;">亦</span>会<span style="color: black;">引起</span>数值不准确。监测前应清洁手指，<span style="color: black;">同期</span><span style="color: black;">重视</span>手指上不要有胶布等异物，避免手指沾水，保持指端干燥。</p>
</span><strong style="color: blue;"><span style="color: black;">第二，</span></strong><span style="color: black;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">天气寒冷时<span style="color: black;">倘若</span>指端温度较低则血液循环<span style="color: black;">不良</span>，此时测出的数值可能<span style="color: black;">亦</span>不准确，应待手指复温后再进行监测。</p>
</span><strong style="color: blue;"><span style="color: black;">第三，</span></strong><span style="color: black;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">不要在同<span style="color: black;">一边</span><span style="color: black;">同期</span><span style="color: black;">测绘</span>血压和血氧，血压计的袖带在充气时会阻断血流，<span style="color: black;">引起</span>血氧饱和度<span style="color: black;">测绘</span>不准确。</p>
</span><strong style="color: blue;"><span style="color: black;">第四，</span></strong><span style="color: black;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">长期</span>夹着同一根手指监测血氧饱和度会<span style="color: black;">引起</span>该手指血液循环<span style="color: black;">不良</span>，若需<span style="color: black;">长期</span>监测，<span style="color: black;">意见</span>每1~2小时更换一下监测手指。</p>
</span><strong style="color: blue;"><span style="color: black;">第五，</span></strong><span style="color: black;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">强光会对血氧探头产生信号干扰，<span style="color: black;">测绘</span>出来的数值会不准确，<span style="color: black;">因此呢</span>不<span style="color: black;">意见</span>在强光下<span style="color: black;">运用</span>。</p>
</span><strong style="color: blue;"><span style="color: black;">第六，</span></strong><span style="color: black;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">有人<span style="color: black;">发掘</span>，<span style="color: black;">区别</span>体位下监测血氧饱和度会<span style="color: black;">显现</span><span style="color: black;">区别</span>的数值，这可能与氧合改善<span style="color: black;">相关</span>。例如，右侧肺部有炎症的<span style="color: black;">病人</span>，左侧卧位时血氧饱和度可能会更高。</p>提醒<span style="color: black;">大众</span>，血氧饱和度只是反应身体<span style="color: black;">情况</span>的一个指标，血氧饱和度正常不<span style="color: black;">必定</span><span style="color: black;">表率</span>机体不缺氧，需综合<span style="color: black;">评定</span>监测数据与<span style="color: black;">自己</span>症状及体征。例如，即使血氧饱和度正常但存在<span style="color: black;">呼气</span>困难、喘憋等不适症状，<span style="color: black;">一样</span>需要<span style="color: black;">即时</span><span style="color: black;">看病</span>。<span style="color: black;">另外</span>，新生儿、婴幼儿与成人的血氧饱和度正常值差异<span style="color: black;">很强</span>，<span style="color: black;">因此呢</span>成人血氧监测仪不适用于婴幼儿及新生儿。
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<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;"><span style="color: black;">源自</span>：健康报</span></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">文：清华大学<span style="color: black;">附庸</span>北京清华长庚医院 贺文静 沈犁</span></span></p>
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