HESI LPN
Maternity HESI Test Bank Questions
Question 1 of 5
In the Ballard Gestational Age Assessment Tool, the nurse determines that a 15-month-old infant has a gestational age of 42 weeks. Based on this finding, which intervention is most important for the nurse to implement?
Correct Answer: B
Rationale: Late preterm infants, such as those with a gestational age of 42 weeks, are at higher risk for hypoglycemia due to immature metabolic regulation. Monitoring capillary blood glucose is crucial to detect and manage hypoglycemia promptly. Providing blow-by oxygen (
Choice
A) is not indicated for an infant at risk for hypoglycemia. Drawing arterial blood gases (
Choice
C) is not the primary intervention for assessing hypoglycemia. Applying a pulse oximeter to the foot (
Choice
D) is not directly related to monitoring blood glucose levels in this context.
Question 2 of 5
An individual's phenotype reflects both genetic and environmental influences.
Correct Answer: A
Rationale: The correct answer is A: phenotype. A phenotype is the observable characteristics of an individual, which result from the interaction of their genotype with the environment. This interaction between genetics and the environment determines how genes are expressed and how traits are manifested in an individual.
Choices B, C, and D are incorrect because chromosomes, alleles, and genotypes are components of an individual's genetic makeup, but they do not directly reflect the observable traits influenced by both genetics and the environment.
Question 3 of 5
Jill bears the genetic code for Von Willebrand disease, but she has never developed the illness herself. Jill would be considered:
Correct Answer: A
Rationale: Jill is a carrier of the recessive gene for Von Willebrand disease. Being a carrier means that she has one copy of the gene but does not show symptoms of the disease. Carriers can pass on the gene to their offspring.
Choice B is incorrect as being a carrier does not mean she is susceptible to developing the disease after adolescence.
Choice C is incorrect as 'acceptor' is not a term used in genetics in this context.
Choice D is incorrect as susceptibility to the disease is not related to late adulthood in carriers of a recessive gene.
Question 4 of 5
Do dizygotic (DZ) twins run in families?
Correct Answer: A
Rationale: Yes, dizygotic (DZ) twins can run in families. This is due to genetic factors that influence hyperovulation, where a woman releases multiple eggs during her menstrual cycle. This genetic predisposition can be passed down through generations, increasing the likelihood of having dizygotic twins.
Choices B, C, and D are incorrect because the statement that dizygotic twins run in families is true, as supported by scientific evidence. It is important to note that while the genetic predisposition for dizygotic twins can run in families, it does not guarantee that every generation will have twins, as other factors also play a role in twin pregnancies.
Question 5 of 5
Which of the following pairs of bases is present in the rungs of the ladder-like structure of deoxyribonucleic acid (DNA)?
Correct Answer: A
Rationale: The correct answer is A: Cytosine with guanine. In the DNA double helix, cytosine always pairs with guanine forming a base pair, and adenine pairs with thymine. These complementary base pairs form the rungs of the ladder-like structure of DNA.
Choice B, Rhodamine with biotin, is incorrect as they are not base pairs found in DNA.
Choice D, Serine with tyrosine, is incorrect as they are amino acids, not DNA bases.
Choice C, Diaminopurine with ribozyme, is also incorrect as ribozyme is an enzyme, not a base, and diaminopurine is not one of the standard bases found in DNA.