HESI LPN
HESI Focus on Maternity Exam
1. As women reach the end of their childbearing years, does ovulation become more regular?
- A. TRUE
- B. FALSE
- C. Rarely
- D. Always
Correct answer: B
Rationale: The correct answer is B: FALSE. As women age and reach the end of their childbearing years, ovulation becomes less regular due to hormonal changes associated with menopause. This can result in irregular ovulation patterns or even the cessation of ovulation entirely. Choice A is incorrect because ovulation does not become more regular with age. Choices C and D are also incorrect as they do not accurately reflect the changes in ovulation patterns that occur as women approach the end of their childbearing years.
2. A client at 37 weeks gestation presents to labor and delivery with contractions every two minutes. The nurse observes several shallow small vesicles on her pubis, labia, and perineum. The nurse should recognize the client is exhibiting symptoms of which condition?
- A. Genital Warts
- B. Syphilis
- C. Herpes Simplex Virus
- D. German Measles
Correct answer: C
Rationale: The correct answer is C: Herpes Simplex Virus (HSV). HSV can present with small vesicles on the genital area, and it is a concern during labor due to the risk of transmission to the newborn. Genital warts (Choice A) are caused by the human papillomavirus (HPV) and typically present as flesh-colored growths, not vesicles. Syphilis (Choice B) manifests as painless sores and can have systemic effects but does not typically present with vesicles. German measles (Choice D), also known as Rubella, is a viral illness characterized by a red rash, fever, and lymphadenopathy, not vesicles.
3. Which of the following processes happen during mitosis?
- A. Strands of deoxyribonucleic acid (DNA) break apart.
- B. Adenine combines with its appropriate partner, cytosine.
- C. Sperm and ova cells are created.
- D. Twenty-three chromosomes are created.
Correct answer: A
Rationale: The correct process that happens during mitosis is the breaking apart, replication, and division of DNA strands into two new cells, each with the same number of chromosomes as the original cell. Choice B is incorrect because it describes base pairing in DNA, not a process specific to mitosis. Choice C is incorrect as the creation of sperm and ova cells is related to meiosis, not mitosis. Choice D is incorrect because chromosomes are not created during mitosis; they are replicated and divided equally between the daughter cells.
4. The healthcare provider is planning care for a client at 30 weeks gestation who is experiencing preterm labor. Which medication is most important in preventing this fetus from developing respiratory distress syndrome?
- A. Ampicillin 1 gram IV push every 8 hours
- B. Betamethasone 12 mg deep IM
- C. Terbutaline 0.25 mg subcutaneously every 15 minutes for 3 doses
- D. Butorphanol tartrate 1 mg IV push every 2 hours as needed
Correct answer: B
Rationale: Betamethasone is a corticosteroid given to stimulate fetal lung maturity and reduce the risk of respiratory distress syndrome in preterm infants. Ampicillin (Choice A) is an antibiotic and does not prevent respiratory distress syndrome. Terbutaline (Choice C) is a tocolytic used to inhibit contractions and does not directly prevent respiratory distress syndrome. Butorphanol tartrate (Choice D) is an opioid analgesic and does not have a role in preventing respiratory distress syndrome in preterm infants.
5. What is the structure of deoxyribonucleic acid (DNA)?
- A. single spiral
- B. double helix
- C. sphere
- D. cube
Correct answer: B
Rationale: The correct answer is B: double helix. DNA is structured as a double helix, resembling a twisted ladder made up of two strands of nucleotides. Choice A, single spiral, is incorrect as DNA is not a single spiral structure. Choice C, sphere, is incorrect as DNA does not form a spherical shape. Choice D, cube, is incorrect as DNA does not have a cubic structure. Understanding the double helix structure of DNA is essential as it allows for the storage and transmission of genetic information in living organisms.
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