HESI RN
HESI Maternity Test Bank
1. What maternal behavior is typically observed when a new mother first receives her infant?
- A. She eagerly reaches for the infant, undresses the infant, and examines the infant completely.
- B. Her arms and hands receive the infant and she then traces the infant's profile with her fingertips.
- C. Her arms and hands receive the infant and she then cuddles the infant to her own body.
- D. She eagerly reaches for the infant and then holds the infant close to her own body.
Correct answer: B
Rationale: When a new mother first receives her infant, a typical maternal behavior is to use her arms and hands to receive the infant and then trace the infant's profile with her fingertips. This action is a gentle way of bonding with the newborn and aids in recognizing the infant's features. Choices A, C, and D are incorrect as they do not accurately describe the common behavior of tracing the infant's profile, which is a significant part of the initial interaction between a mother and her newborn.
2. The caregiver observes a mother giving her 11-month-old ferrous sulfate (iron drops), followed by 2 ounces of orange juice. What should the caregiver do next?
- A. Tell the mother to follow the iron drops with infant formula instead of orange juice.
- B. Suggest placing the iron drops in the orange juice and then feeding the infant.
- C. Instruct the mother to feed the infant nothing for 30 minutes after giving the iron drops.
- D. Give the mother positive feedback about the way she administered the medication.
Correct answer: D
Rationale: The high vitamin C content in orange juice aids in the absorption of iron. Providing positive feedback to the mother for administering the iron drops with orange juice is appropriate as it enhances iron absorption, benefiting the infant. Encouraging and acknowledging correct medication administration can help reinforce good practices and build confidence in the caregiver. Choices A, B, and C are incorrect because they do not align with the beneficial practice of administering iron drops with orange juice, which enhances iron absorption. Changing the method of administration based on incorrect assumptions or instructing to withhold feeding after giving iron drops is unnecessary and not evidence-based.
3. When preparing a class on newborn care for expectant parents, what content should be taught concerning the newborn infant born at term gestation?
- A. Milia are white marks caused by sebaceous glands and typically resolve within 2 to 4 weeks.
- B. Meconium is the first stool and is typically dark green or black in color.
- C. Vernix caseosa is a white, cheesy substance mainly found in skin folds, providing a protective layer.
- D. Pseudostrabismus in newborns usually self-resolves without the need for intervention.
Correct answer: C
Rationale: Vernix caseosa is a white, cheesy substance that acts as a protective barrier on the skin of newborns, particularly present in skin folds. It helps to prevent dehydration and protect the delicate skin of the newborn from the amniotic fluid in utero. Educating expectant parents about the presence and function of vernix caseosa can help them understand the importance of its preservation during the immediate postnatal period. Choices A, B, and D are incorrect as they do not directly relate to the protective function of vernix caseosa in newborns. Milia are small, white bumps on the skin due to blocked oil glands, meconium is the first stool of a newborn and is typically dark green or black in color, and pseudostrabismus refers to false appearance of misalignment of the eyes, which usually resolves on its own without intervention.
4. A loading dose of terbutaline (Brethine) 250 mcg IV is prescribed for a client in preterm labor. Brethine 20 mg is added to 1,000 mL of D5W. How many milliliters of the solution should the nurse administer?
- A. 45
- B. 15 mL
- C. 4
- D. 13
Correct answer: D
Rationale: To calculate the amount of terbutaline to administer, first convert the dose to the same unit. 250 mcg = 0.25 mg. Next, set up a proportion: 20 mg is to 1000 mL as 0.25 mg is to X mL. Cross multiply and solve for X: 20 × X = 0.25 × 1000. X = (0.25 × 1000) / 20 = 12.5 mL. Therefore, the nurse should administer 13 mL of the solution. Choice A is incorrect as it does not reflect the correct calculation. Choice B is incorrect as it does not consider the accurate conversion and calculation. Choice C is incorrect as it is not the result of the correct proportion calculation.
5. In which chromosome pattern is Duchenne disease inherited?
- A. Autosomal dominant
- B. Autosomal recessive
- C. X-linked recessive
- D. Mitochondrial
Correct answer: C
Rationale: Duchenne disease is caused by a mutation in the DMD gene located on the X chromosome, leading to an X-linked recessive inheritance pattern. Males are typically affected by this disorder as they have only one X chromosome, while females are carriers with one normal and one affected X chromosome.
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