HESI LPN
HESI Focus on Maternity Exam
1. A newborn is being assessed following a forceps-assisted birth. Which of the following clinical manifestations should the nurse identify as a complication of the birth method?
- A. Hypoglycemia
- B. Polycythemia
- C. Facial Palsy
- D. Bronchopulmonary dysplasia
Correct answer: C
Rationale: Facial palsy is a known complication of forceps-assisted birth. During forceps delivery, pressure applied to the facial nerve can result in facial palsy. The newborn may present with weakness or paralysis of the facial muscles on one side. Hypoglycemia (Choice A) is not directly related to forceps-assisted birth. Polycythemia (Choice B) is a condition characterized by an increased number of red blood cells and is not typically associated with forceps delivery. Bronchopulmonary dysplasia (Choice D) is a lung condition that primarily affects premature infants who require mechanical ventilation and prolonged oxygen therapy, not a direct outcome of forceps-assisted birth.
2. A client is experiencing sore nipples from breastfeeding. Which of the following actions should the nurse take?
- A. Place a snug dressing on the client’s nipple when not breastfeeding
- B. Ensure the newborn’s mouth is wide open before latching to the breast
- C. Encourage the client to limit the newborn’s feeding to 10 minutes on each breast
- D. Instruct the client to begin the feeding with the nipple that is most tender
Correct answer: B
Rationale: Ensuring the newborn's mouth is wide open before latching is crucial for achieving a proper latch, which can help reduce nipple soreness. Placing a snug dressing on the nipple when not breastfeeding (choice A) can lead to further irritation and hinder healing. Encouraging the client to limit the newborn’s feeding to 10 minutes on each breast (choice C) may not be adequate for effective feeding as infants should feed until they are satisfied. Instructing the client to begin feeding with the most tender nipple (choice D) can worsen the soreness as it may not allow the baby to feed effectively.
3. Which field of biology studies heredity?
- A. Etiology.
- B. Ecology.
- C. Genetics.
- D. Eugenics.
Correct answer: C
Rationale: Genetics is the branch of biology that focuses on the study of heredity and variation in organisms. Etiology (choice A) deals with the causes of diseases, not heredity. Ecology (choice B) is concerned with the relationships between organisms and their environment, not specifically heredity. Eugenics (choice D) is a controversial field that involves improving the genetic quality of the human population through selective breeding, which is different from the study of heredity itself.
4. When both alleles' effects are shown, there is said to be:
- A. codominance.
- B. preponderance.
- C. ascendance.
- D. concurrence.
Correct answer: A
Rationale: The correct answer is A: codominance. Codominance refers to a genetic scenario where both alleles in a gene pair are fully expressed, leading to a phenotype that displays traits from both alleles equally. This is distinct from incomplete dominance where the traits blend. Choices B, C, and D are incorrect. Preponderance does not specifically relate to the expression of alleles. Ascendance and concurrence do not describe the genetic concept of codominance where both alleles are fully expressed.
5. Polygenic traits are those that are:
- A. developed during adolescence.
- B. transmitted by the mother.
- C. uncommon in humans.
- D. determined by several pairs of genes.
Correct answer: D
Rationale: Polygenic traits, such as height and skin color, are determined by several pairs of genes working together. These traits are influenced by the combined effects of multiple genes across the genome, rather than being controlled by a single gene pair. Choices A, B, and C are incorrect because polygenic traits are not specifically developed during adolescence, transmitted by the mother, or uncommon in humans. Understanding polygenic traits is essential in genetics as they demonstrate the complexity of genetic inheritance and the influence of multiple genes on a single trait.
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