Maternity HESI Test Bank

Question 1 of 5

Which of the following statements is true of sickle-cell anemia?

A. It is typically managed with treatments such as pain relief medications. B. It is caused by a mutation in the beta-globin gene. C. It leads to the obstruction of small blood vessels and decreased oxygen delivery. D. It is more prevalent in individuals of African, Mediterranean, Middle Eastern, and Indian descent.

Correct Answer: C

Rationale: The correct answer is C. Sickle-cell anemia results from a mutation in the beta-globin gene, causing red blood cells to become sickle-shaped. These misshapen cells can obstruct small blood vessels, leading to reduced oxygen delivery to tissues.

Choices A, B, and D are incorrect because sickle-cell anemia is typically managed with treatments such as pain relief medications, hydration, and in severe cases, blood transfusions. It is caused by a specific mutation in the beta-globin gene, not by the inability to metabolize phenylalanine. Additionally, sickle-cell anemia is more prevalent in individuals of African, Mediterranean, Middle Eastern, and Indian descent, not exclusive to any specific gender.

Question 2 of 5

A nurse is planning to teach a group of clients who are breastfeeding after returning to work. Which of the following instructions should the nurse include in the teaching?

A. "Thawed breast milk can be refrigerated for up to 24 hours." B. "Breast milk can be stored in a deep freezer for 12 months." C. "Breast milk can be stored at room temperature for up to 4 hours." D. "Thawed breast milk that is unused cannot be refrozen."

Correct Answer: B

Rationale: The correct answer is B: "Breast milk can be stored in a deep freezer for 12 months." This instruction is important for mothers returning to work to ensure a long-term storage option for breast milk.
Choice A is incorrect because thawed breast milk should be used within 24 hours if stored in the refrigerator.
Choice C is incorrect as breast milk can be kept at room temperature for only up to 4 hours.
Choice D is incorrect as thawed breast milk that is unused should not be refrozen due to safety concerns.

Question 3 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?

A. Provide blow-by oxygen B. Provide a capillary blood glucose test C. Draw arterial blood gases D. Apply a pulse oximeter to the foot

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 4 of 5

Monozygotic (MZ) twins share _________ percent of their genes.

A. 100 B. 75 C. 50 D. 25

Correct Answer: A

Rationale: Monozygotic (MZ) twins share 100% of their genes because they originate from the same fertilized egg that splits into two, resulting in identical genetic material for both twins.
Choice B (75%) is incorrect as it implies a partial genetic similarity, which is not the case for MZ twins.
Choice C (50%) is incorrect as it suggests half of the genes are shared, which is applicable to dizygotic (DZ) twins, not MZ.
Choice D (25%) is incorrect as it indicates minimal genetic sharing, which is not true for MZ twins.

Question 5 of 5

Jill bears the genetic code for Von Willebrand disease, but she has never developed the illness herself. Jill would be considered:

A. a carrier of the recessive gene that causes the disease. B. susceptible to the disease after adolescence. C. an acceptor of the recessive gene that causes the disease. D. susceptible to the disease in late adulthood.

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.

Nurselytic

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