application;infection antibacterialdrug clinicalapplication; transfusion refers levy;nutrition support adaptedcard clinicalapplication; common life support technology cyclebreathing support, nutritionsupport,) emergencytechnology application;common guardianship instrument using. Look: shock, cardiac respiratory arrest acuteorgan failure, systemic inflammatory response syndrome severeinfection multipleorgan dysfunction syndrome ODS),severe disturbance bodyfluid environment criticaltheory basicrequirements studyrequirements: severe pneumonia disease-diseasemyocardial infarction highrequirements learningdisease species: disease species disease species image radiation: rheumatic heart congenital heart intestinal Crohn's (Crohn) disease intestinal tuberculosis bile duct cancer chronic pancreatic inflammatory urinary system stone urinary system tumor adrenal disease thyroid disease cranial within infection nervous system tumor nuclear medical: Digest road bleeding explicit like brain blood flow perfusion explicit like testicular blood pool explicit like salivary glands explicit like clinicalknowledge, skillsrequirements: understand various image check (一)定义与分类 1999 年世界卫生组织/国际高血压联盟指南(World Health Organization InternationalSociety Hypertensionguidelines, WHO/ISH guidelines)中的高血压定义为:未服抗高血压药的情况下, 收缩压140mmHg 和(或)舒张压90mmHg。血压水平与心血管疾病危险呈正相关。WHO/ISH 南专家委员会认为,以往以“期”分类有病程进展阶段的含义,而目前仅按血压水平分类,不反映病程,故改用“级”。所以目前的1、2、3 级(与前一版WHO/ISH 指南中的轻、中、重相对应)取代美国国家委 员会指南中的1、2、3 期,又将临界高血压列为1 级的亚组(收缩压为140~149mmHg,舒张压为90~ 94mmHg),还将收缩压140~149mmHg、舒张压