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 disorder occurs in males and heterozygous females.
The disorder is carried on the X chromosome.
Both genes of a pair must be abnormal for the disorder to be expressed.
Only one copy of the abnormal gene is required for the disorder to be expressed.
The Correct Answer is C
Both genes of a pair must be abnormal for the disorder to be expressed. In autosomal recessive inheritance, the gene for the disorder is located on an autosome (any chromosome other than a sex chromosome) and a person must inherit two copies of the abnormal gene (one from each parent) in order for the disorder to be expressed. If a person inherits only one copy of the abnormal gene, they are a carrier of the disorder but do not typically show symptoms.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
After a forceps-assisted birth, the infant should be assessed for signs of trauma or injury, such as bruising, facial nerve injury, or skull fractures. This assessment should be done immediately after the birth to ensure prompt recognition and management of any issues.
Option A is incorrect because measuring the circumference of the infant's head can be done after the assessment for trauma has been completed and any issues have been addressed.
Option B is incorrect because applying a cold pack to the infant's scalp is not a standard nursing intervention after a forceps-assisted birth.
Option D is incorrect because prophylactic antibiotics are not routinely administered to infants after a forceps-assisted birth unless there is a specific indication, such as suspected infection.
Correct Answer is C
Explanation
Mom's blood type is A-negative, and baby's blood type is O-positive would place the neonate at risk for physiologic jaundice due to Rh incompatibility. When mom is Rh-negative and baby is Rh-positive, the mother's immune system can create antibodies that attack the baby's red blood cells, leading to the destruction of red blood cells and subsequent release of bilirubin, which can result in jaundice.
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