exam 4 practice genetics

What site should the nurse use to obtain a blood sample to screen a neonate for phenylketonuria (PKU)? heel radial artery scalp vein brachial artery

heel

When preparing to obtain a neonatal screening test for phenylketonuria (PKU), the nurse understands that the neonate must have been fed what to ensure reliable results? a feeding of an iron-rich formula nothing by mouth for 4 hours before the test initial formula or breast milk at least 24 hours before the test a feeding of glucose water

initial formula or breast milk at least 24 hours before the test

that the child has a short neck covered with webbing. The nurse should further assess the client for which problem? genetic deviations cleft palate Potter's syndrome neural tube defects

genetic deviations

A 10-month-old child with phenylketonuria (PKU) is being weaned from breast-feeding. When teaching the parents about the proper diet for their child, the nurse should stress the importance of restricting meats and dairy products because: they are difficult for clients with PKU to digest. they contain high levels of phenylalanine. they are not well tolerated in children with PKU until after age 2. they contain high levels of phenylketones, which inhibit muscle growth.

they contain high levels of phenylalanine.

Which common characteristics should the nurse include in the teaching plan for a multiparous client after giving birth to a neonate diagnosed with Down Syndrome? Select all that apply webbed neck small testes congenital heart defects polydactyly epicanthal folds hypotonia

webbed neck congenital heart defects epicanthal folds hypotonia

A 3-year-old is seen in the well child clinic. The parent is concerned that the child may be autistic. Which assessment data would indicate a concern to the nurse? Select all that apply. inability to separate from mother inability to stay on task lack of communication abilities withdrawing into a private world inability to develop social skills

lack of communication abilities withdrawing into a private world inability to develop social skills

When teaching the mother of a child diagnosed with phenylketonuria (PKU) about its transmission, the nurse should use knowledge of which factor as the basis for the discussion? chromosome translocation chromosome deletion autosomal recessive gene x-linked recessive gene

autosomal recessive gene

Which child should the nurse assess as demonstrating behaviors that need further evaluation? a 2-year old who refuses to be toilet trained and talks to himself a 6-year-old who sucks her thumb when tired and has never spent the night with a friend a 10-year-old who frequently tells his mother that he is going to run away whenever they argue a 2-year-old who is indifferent to other children and adults and is mute

a 2-year-old who is indifferent to other children and adults and is mute

Metabolic screening of an infant revealed a high phenylketonuria (PKU) level. Which statement the infant's mother indicates understanding of the disease and its management? Select all that apply. "My baby cannot have milk-based formulas." "My baby will grow out of this by the age of 2." "This is a hereditary disease, so any future children will have it, too." "My baby will eventually become intellectually disabled because of this disease." "We have to follow a strict low-phenylalanine diet." "A dietitian can help me plan a diet that keeps a safe phenylalanine level but lets my baby grow."

"My baby cannot have milk-based formulas." "We have to follow a strict low-phenylalanine diet." "A dietitian can help me plan a diet that keeps a safe phenylalanine level but lets my baby grow."

Parents bring a newborn to a well-child check-up and tell the nurse they are concerned about the safety of vaccinations due to a link to autism spectrum disorders. What response by the nurse would be most appropriate? "Autism spectrum disorders are a genetic problem and not caused by vaccines." "The concerns with autism spectrum disorders from vaccines are not well supported by research." "I have never heard of any cases of autism spectrum disorders occurring from vaccines." "I will tell your pediatrician about your wishes so we can plan your visit."

"The concerns with autism spectrum disorders from vaccines are not well supported by research."

Which foods would the nurse teach the parents of a child with phenylketonuria (PKU) to avoid? Select all that apply. hamburger hot dog ice cream juice cereal

hamburger hot dog ice cream

Atropine is being administered to a child with sinus bradycardia. Which information is most accurate about the administration of this medication? increases heart rate raises blood pressure dilates bronchial tubes decreases heart rate

increases heart rate

A client is a 43-year-old G2 P1 at 16 weeks' gestation that has completed prenatal testing for chromosomal abnormalities. The results reveal the infant is a female with Down syndrome. The parents are seeking information about this syndrome. What should the nurse tell the parents? Select all that apply. Down syndrome can occur in mothers of any age. Down syndrome is correlated with autosomal dominant traits carried by the parents. Down syndrome is a result of autosomal recessive traits carried by the parents. Down syndrome depends upon maternal prenatal care since pregnancy began. Down syndrome occurs more frequently with advanced maternal age. Down syndrome results from a trisomy of chromosome 21.

Down syndrome can occur in mothers of any age. Down syndrome occurs more frequently with advanced maternal age. Down syndrome results from a trisomy of chromosome 21.

The nurse is notified that a neonate who was discharged several days ago has a phenylketonuria (PKU) metabolic screening test result of 7 mg/dL. What action should the nurse take? Notify the parents to bring the neonate to the hospital to repeat the test. Notify the healthcare provider of the normal test result. Notify the blood bank because the neonate requires a blood transfusion. Notify the healthcare provider because the test result is critically elevated.

Notify the healthcare provider because the test result is critically elevated.