Exam 12: Conception and Fetal Development

With regard to the development of the respiratory system,maternity nurses should be aware that:

Very fine hairs,called ____________________,appear first at 12 weeks of gestational age on the fetus's eyebrows and upper lip.By 20 weeks they cover the entire body.By 28 weeks,the scalp hair is longer than these fine hairs,which thin and may disappear by term gestation.

The fetal concentration of glucose is lower than the glucose level in the maternal blood because of its rapid metabolism by the fetus.Is this statement true or false?

A woman asks the nurse,"What protects my baby's umbilical cord from being squashed while the baby's inside of me?" The nurse's best response is:

It is important for the nurse to understand that the placenta:

At approximately _____ weeks of gestation,lecithin is forming on the alveolar surfaces,the eyelids open,and the fetus measures approximately 27 cm crown to rump and weighs approximately 1110

Sally comes in for her first prenatal examination.This is her first child.She asks you (the nurse),"How does my baby get air inside my uterus?" The correct response is:

A newly married couple plans to use natural family planning.It is important for them to know how long an ovum can live after ovulation.The nurse knows that teaching is effective when the couple responds that an ovum is considered fertile for:

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

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

The volume of amniotic fluid is an important factor in assessing fetal well-being.Oligohydramnios (an amniotic fluid volume of less than 300 ml)is associated with what kind of fetal anomalies?

Which statement concerning neurologic and sensory development is accurate?

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,he or she should be knowledgeable regarding known human teratogens,which include:

The _____ is/are responsible for oxygen and carbon dioxide transport to and from the maternal bloodstream.

A woman who is 8 months pregnant asks the nurse,"Does my baby have any antibodies to fight infection?" The most appropriate response by the nurse is:

The measurement of lecithin in relation to sphingomyelin (L/S ratio)is used to determine fetal lung maturity.Which ratio reflects maturity of the lungs?

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

____________________ twins is another term for fraternal twins.These twins may be the same or different sexes and genetically are no more alike than siblings born at different times.

A nurse caring for a laboring woman should know that meconium is produced by:

The ability of the fetus to survive outside the uterus is called ____________________.