METHODS CG levels in 30 cases of ICP were detected in mother blood and umbilical venous blood by radioimmunoassay and hepatic function (tranaminase, total bile acid)was also detected, 30 cases of normal pregnancy as compared group were also tested.

• 方法：随机选择单胎ICP患者30例，正常妊娠30例作为对照。 分别于空腹或剖宫产前抽取母肘静脉血和脐静脉血，用放射免疫法测定CG水平、生化测定肝功能指标（TBA、ALT、AST等）；