(2)(3)(1)图2-1-15胎产式（2）纵产式-臀先露（3）横产式-肩先露（1）纵产式-头先露Fetallie
Fetal lie
(3)(4)(1)(2)图2-1-16头先露的种类（3）额先露（4）面先露（1）枕先露（2）前卤先露(cephalicpresentation）
w(2)(1)ba(3)臀先露的种类图2-1-17（1）单臀先露（2）完全（混合）臀先露（3）不完全臀先露：a双膝先露b.单藤先露e双足先露d.单足先露
枕左前枕左后机左横桃右前桃右后桃右糖解左后無左前解右后右前颊左后颊左前领右后频右前图2-1-19胎方位
枕左前位（LOA）枕左横位（LOT）头先露顶先露枕左后位（LOP）（95.75%~97.75%）（95.55%~97.55%）枕右前位（ROA）枕右横位《(ROT)枕右后位（ROP）颊左前位（LMA）纵产式颊左横位（LMT）频左后位（LMP）(99.75%)颊右前位（RMA）面先露颊右横位(RMT)(0.2%)颊右后位(RMP)骶左前位（LSA）臀先露骶左横位（LST）骶左后位（LSP）(2%~4%)骶右前位(RSA)骶右横位(RST)右后位(RSP)肩左前位（LScA）横产式肩先露肩左后位（LScP）(0.25%）肩右前位（RScA）肩右后位（RScP）各种胎方位的发生率图2-1-20
Prenatal careInitial officevisit: 1.History: present pregnancy,previous pregnancymedical history,surgical historyfamily history
Prenatal care • Initial office visit • 1.History: present pregnancy; • previous pregnancy • medical history; • surgical history • family history
2.Physical examination1.general examination 2. pelvic examination:pelvic soft tissue: bony pelvis: pelvic inlet, midpelvis, pelvis outletCervical length
2.Physical examination • 1. general examination • 2. pelvic examination: • pelvic soft tissue; • bony pelvis: pelvic inlet, midpelvis, pelvis outlet • Cervical length
3. Laboratory tests. A. blood screeningB. genetics testing. C, Urine testing
3. Laboratory tests • A. blood screening • B. genetics testing • C, Urine testing
Subsequent visits: The standard schedule for prenatal office visits is : 0-32 weeks: once every 4 weeks;32-36 weeks: once every 2 weeks:36 weeks to delivery: once each week;
Subsequent visits • The standard schedule for prenatal office visits is : • 0-32 weeks: once every 4 weeks; 32-36 weeks: once every 2 weeks; 36 weeks to delivery: once each week;
Fetal AssessmentGrowthfundal heightabdominal circumferencebiparietal diameter of the skullfemur length
Fetal Assessment Growth fundal height abdominal circumference biparietal diameter of the skull femur length