Prenatal ultrasound is usually performed for five times. They are
( ).
A: ultrasonography during early pregnancy (6-8 weeks pregnant)
B: ultrasonography at 11-14 weeks pregnant
C: ultrasonography at 20-24 weeks pregnant
D: ultrasonography at 28-32 weeks pregnant, preclinical ultrasonography
( ).
A: ultrasonography during early pregnancy (6-8 weeks pregnant)
B: ultrasonography at 11-14 weeks pregnant
C: ultrasonography at 20-24 weeks pregnant
D: ultrasonography at 28-32 weeks pregnant, preclinical ultrasonography
举一反三
- The pregnancy cycle can be divided into （） A: early pregnancy (the first 14 weeks pregnant) B: second trimester pregnancy (from 15 to 28 weeks pregnant) C: late pregnancy (from 29 to 42 weeks pregnant) D: prolonged pregnancy
- ( ) is a noninvasive testing. A: Ultrasonography B: MSAFP C: Maternal Serum Screen D: Amniocentesis
- Which is suitable for vacuum aspiration？ A: pregnancy of less than 10 weeks B: pregnancy of less than 12 weeks C: pregnancy of less than 14 weeks D: pregnancy of less than 16 weeks E: pregnancy of less than 18 weeks
- The fetal lungs are capable of breathing after ( ). A: 20 weeks' gestational age B: 24 weeks' gestational age C: 28 weeks' gestational age D: 32 weeks' gestational age E: 16 weeks' gestational age
- To ensure delivering a healthy fetus, the more prenatal ultrasound<br/>examinations pregnant woman has, the better.(<br/>)