A 24-year-old nulligravid client with a history of irregular menstrual cycles visits the clinic because she suspects that she is “about 6 weeks pregnant.” An ultrasound is scheduled in 2 weeks. The nurse should instruct the client that this test will be done to:
1. Assess gestational age.
2. Determine a multifetal pregnancy.
3. Identify the gender of the fetus.
4. Assess of maternal pelvic adequacy.
In the first trimester, ultrasound scanning typically is prescribed to determine the gestational age. This is especially important for a client with a history of irregular menstrual cycles to establish an accurate delivery date. There is no reason at this point in pregnancy to determine whether twins are present. This might be indicated if the fundal height were larger than the gestational age may indicate. Identifying the gender of the fetus is not a reason for an ultrasound examination unless there is a history of sex-linked genetic disorders. Pelvic adequacy can be determined by physical examination. If the client has a borderline pelvis, an ultrasound scan cannot confirm this. Pelvimetry can be done, but it is not performed as frequently as it once was.
CN: Health promotion and maintenance; CL: Apply
小编寄语：Sowing and harvesting are not in the same season, the interval of a period of time, called persistence!播种和收获不在同一个季节，中间隔着的一段时间，叫坚持！