Exam 6: Genetics, conception, and Fetal Development

A man's wife is pregnant for the third time.One child was born with cystic fibrosis,and the other child is healthy.The man wonders what the chance is that this child will have cystic fibrosis.This type of testing is known as:

In practical terms regarding genetic health care,nurses should be aware that:

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

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

The nurse is assessing the knowledge of new parents with a child born with maple syrup urine disease (MSUD).This is an autosomal recessive inherited disorder,which means that:

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

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?

A woman is 15 weeks pregnant with her first baby.She asks how long it will be before she feels the baby move.The best answer is:

A key finding from the Human Genome Project is:

A pregnant woman at 25 weeks' gestation tells the nurse that she dropped a pan last week and her baby jumped at the noise.Which response by the nurse is most accurate?

A father and mother are carriers of phenylketonuria (PKU).Their 2-year-old daughter has PKU.The couple tells the nurse that they are planning to have a second baby.Because their daughter has PKU,they are sure that their next baby won't be affected.What response by the nurse is most accurate?

In presenting to obstetric nurses interested in genetics,the genetic nurse identifies the primary risk(s)associated with genetic testing as: