<>
body,
textarea,
input,
select,
option {
font-size: 12px;
color: #333;
font-family: TahomaArialsans-serif;
}
h1,
h2,
h3,
h4,
h5,
h6 {
font-size: 100%;
}
body,
h1,
h2,
h3,
h4,
h5,
h6,
blockquote,
ol,
ul,
dl,
dd,
p,
textarea,
input,
select,
option,
form {
margin: 0;
}
ol,
ul,
li,
textarea,
input,
select,
option,
th,
td {
padding: 0;
}
table {
border-collapse: collapse;
}
ol,
ul {
list--type: none;
}
.clears:before,
.clears:after {
content: '';
display: table;
}
.clears:after {
clear: both;
}
.clears {
*zoom: 1;
}
.clear {
clear: both;
height: 0;
overflow: hidden;
}
a {
text-decoration: none;
color: #333;
}
a,
textarea,
input {
outline: none
}
textarea {
overflow: auto;
resize: none;
}
.img img {
display: block;
}
a img {
border: none;
}
.z_index {
position: fixed;
_position: absolute;
z-index: 999;
display: none;
}
label,
label input {
vertical-align: middle
}
.pr {
position: relative;
}
.pa {
position: absolute;
}
.fl {
float: left;
}
.fr {
float: right;
}
.m980 {
margin: 0 auto;
width: 980px;
}
.t10 {
margin-top: 10px;
}
a:hover {
text-decoration: underline
}
.m958 {
margin: 0 auto;
width: 958px;
}
.header .d_center {
display: inline;
margin: 0;
width: 780px;
}
.d_searchbox {
background: none repeat scroll 0 0 transparent;
border: medium none;
padding: 6px 0 5px 6px;
}
.rel {
position: relative;
}
.d_searchbox .d_inp_wp {
background-position: 0 -140px;
}
.d_searchbox .d_inp_wp {
width: 468px;
_width: 464px;
height: 40px;
border: 2px solid #a3c48a;
border-right: none;
position: relative;
}
.d_searchbox .d_inp {
background: url("//cdn.120askimages.com/ask/css/img/p_120topbg.gif") no-repeat scroll -661px -55px transparent;
border: medium none;
color: #999999;
font-size: 14px;
height: 16px;
padding: 11px 6px 11px 40px;
width: 421px;
border: medium none
}
.d_searchbox .d_subbtn {
background: url("//cdn.120askimages.com/ask/css/img/p_120topbg.gif") no-repeat scroll 0 0 transparent;
height: 44px;
width: 154px;
margin-right: 0;
cursor: pointer;
display: inline;
border: 0 none;
}
.d_searchbox .d_searchbtn {
background: url("//cdn.120askimages.com/ask/css/img/p_120topbg.gif") no-repeat scroll -157px 0 transparent;
border: medium none;
cursor: pointer;
height: 44px;
width: 132px;
}
>
<>
/*2015 06 09 头部导航 */
.sublink{background:url(//b.120askimages.com/indexImg/header_rep_x.png) repeat-x;background-position:0 -42px;height:61px;white-space:nowrap;overflow:hidden;border:1px solid #b0d892;}
.sublink dd a{padding:0 8px 0 9px;float:left;}
.sublink dd{background:url(//cdn.120askimages.com/ask/images/ask_topico.png) no-repeat;float:left;padding-left:50px;height:45px;margin:9px 0 8px 0;line-height:24px;border-left:1px solid #c7deb6;}
.sublink .d_1{width:285px;border:none; background-position:12px 8px;}
.sublink .d_2{width:190px;background-position:12px -49px;}
.sublink .d_3{width:209px;background-position:12px -106px;}
.sublink .d_4{width:70px;background-position:12px -164px;}
.a_var{font-:normal;padding-left:8px;}
>
rbc分布宽度cv偏低是什么意思
更新时间:2021-11-30 08:33:06
rbc分布宽度cv偏低指的是红细胞分布宽度偏低,是指红细胞分布宽度低于正常水平的一种情况。红细胞分布宽度是血常规中比较常见的一个指标,临床上如果患者出现红细胞分布宽度偏低,主要原因有生理性的原因和病理性原因。
一、生理性的原因
比如当患者喝水过多或者体内水分过多时,导致血液稀释时这个指标可能会偏低。
二、病理性原因
1.缺铁性贫血
铁吸收障碍如胃大部切除术后、长期不明原因腹泻、慢性肠炎、克隆病等均可因铁吸收障碍而发生IDA,或者是如慢性胃肠道失血、月经量过多、咯血和肺泡出血、血红蛋白尿等,引起缺铁性贫血,从而导致rbc分布宽度cv偏低;
2.巨幼细胞性贫血
贫血起病隐匿,特别是维生素B12缺乏者常需数月,而叶酸由于体内储存量少,可较快出现缺乏;严重贫血者可有轻度黄疸,可同时有白细胞数和血小板减少,患者偶有感染及出血倾向,从而rbc分布宽度cv偏低。
<>
.authentication-doc{border:1px solid #eee;}
.authentication-doc .doc_list1 {overflow: hidden;clear: both;padding: 10px;padding-bottom: 10px;}
.authentication-doc .t{ display:block;font-size:14px;padding:10px;font-weight:bold;background-color:#f5f5f5;border-bottom:1px solid #eee;}
.authentication-doc .t em{font-size:12px;color:#888;font-:normal;font-weight:normal;}
.authentication-doc .face_img{float:left;width:75px; height: 90px; position: relative; overflow: hidden; text-align: center;}
.authentication-doc .face_img img{height:90px;}
.authentication-doc .face_img span{ position: absolute; background-color: #35b724;color:#fff;padding:1px 5px;font-size:12px;bottom:0;right:0;}
.authentication-doc .face_img .online{background-color: #35b724;color:#fff;}
.authentication-doc .face_img .offline{background-color: #999;color:#fff;}
.authentication-doc .face_img .tel{background-color: #0085b7;color:#fff;}
.authentication-doc .face_img .noline{ background-color: #999;}
.authentication-doc .info_doc {float: left;padding: 0 30px 0 15px;width: auto;}
.authentication-doc .info_doc span{display: block;color:#999;line-height: 20px;}
.authentication-doc .info_doc strong{font-size:14px;margin-right:15px;color:#333;}
.authentication-doc .info_doc p {display: block;line-height: 20px;color: #666;padding-top: 4px;padding-bottom: 10px;}
.authentication-doc .info_doc p a{color:#999;white-space:nowrap;}
.authentication-doc .btn:hover{text-decoration:none;}
>
<>
.m1200{width: 1200px;margin: 0 auto;}
.common_footer{background-color: #f1f3f1;overflow: hidden;clear: both;padding:30px 0;font-size: 12px;}
.common_footer .links{display: block;overflow: hidden; clear: both;color:#aaa; text-align: center;}
.common_footer .links a{display: inline-block;margin: 0 8px;color:#999;}
.common_footer .sp{display: block; text-align: center;color:#999;padding-top:20px;}
>