Exam 12: Conception and Prenatal Development

A patient is sent from the physician's office for assessment because of too little amniotic fluid.The nurse is aware that oligohydramnios can result in

Which part of the mature sperm contains the male chromosomes?

During a centering pregnancy group meeting,the nurse teaches patients that the fetal period is best described as one of

Along with gas exchange and nutrient transfer,the placenta produces many hormones necessary for normal pregnancy.These include (select all that apply)

Congenital disorders refer to those conditions that are present at birth.These disorders may be inherited and caused by environmental factors or maternal malnutrition.Toxic exposures have the greatest effect on development between 15 and 60 days of gestation.For the nurse to be able to conduct a complete assessment of the newly pregnant client,she should be knowledgeable regarding known human teratogens,which include (select all that apply)

With regard to the structure and function of the placenta,the maternity nurse should be aware that

While teaching an early pregnancy class,the nurse explains that the morula is a

The purpose of the ovum's zona pellucida is to

A new mother asks the nurse about the "white substance" covering her infant.The nurse explains that the purpose of vernix caseosa is to

The most basic information a maternity nurse should have concerning conception is

The upper uterus is the best place for the fertilized ovum to implant because it is here that the

The nurse is precepting a student who asks about fetal circulation.The nurse explains that the fetal circulatory shunts are still required after birth.Is this statement true or false?

One of the assessments performed in the delivery room is checking the umbilical cord for blood vessels.Which finding is considered within normal limits?

Between 6 and 10 days after conception,the trophoblast secretes enzymes that enable it to burrow into the endometrium until the entire blastocyst is covered.This is termed implantation.Tiny projections then develop out of the trophoblast and extend into the endometrium.These projections are referred to as

When teaching contraception,the nurse must be able to effectively communicate the nuances of conception.An ovum has the capacity to be fertilized for only 24 hours,whereas a sperm may remain fertile for up to 80 hours.Is this statement true or false?

Oogenesis,the process of egg formation,begins during fetal life in the female.Which statement related to ovum formation is correct?

The various systems and organs develop at different stages.Which statement is accurate?

A woman who is 16 weeks pregnant asks the nurse,"Is it possible to tell by ultrasound if the baby is a boy or girl yet?" The best answer is

Some of the embryo's intestines remain within the umbilical cord during the embryonic period because the

The placenta allows exchange of oxygen,nutrients,and waste products between the mother and fetus by