HESI LPN
HESI Focus on Maternity Exam
1. Does a blastocyst gain mass only when it receives nourishment from outside?
- A. TRUE
- B. FALSE
- C. Sometimes
- D. Always
Correct answer: A
Rationale: A blastocyst does indeed require external nourishment from the mother's body to continue developing and gaining mass. Without this external nourishment, the blastocyst would not be able to grow and develop properly. Therefore, the statement that a blastocyst gains mass only when it receives nourishment from outside is true. Choices B, C, and D are incorrect because they do not accurately reflect the dependency of a blastocyst on external nourishment for its development and growth.
2. A client who is 28 weeks pregnant and not up-to-date on current immunizations should anticipate receiving which of the following immunizations following birth?
- A. Pneumococcal
- B. Hepatitis
- C. Human papillomavirus
- D. Rubella
Correct answer: D
Rationale: The correct answer is D, Rubella. Rubella vaccine is recommended postpartum to prevent congenital rubella syndrome in future pregnancies. Pneumococcal and Hepatitis vaccines are not routinely given postpartum. Human papillomavirus vaccine is not typically administered immediately after birth but rather at a later age to prevent HPV infections.
3. When should a nurse on a labor and delivery unit instruct a newly licensed nurse to don gloves for a procedure?
- A. Assisting a mother with breastfeeding
- B. Performing a newborn's initial bath
- C. Administering the measles, mumps, rubella vaccine
- D. Performing umbilical cord care
Correct answer: B
Rationale: The correct answer is B: Performing a newborn's initial bath. Gloves should be worn during this procedure to protect against exposure to body fluids, such as amniotic fluid or blood. Assisting a mother with breastfeeding (Choice A) does not typically require gloves unless there are specific reasons for infection control. Administering vaccines (Choice C) and performing umbilical cord care (Choice D) are procedures that may require hand hygiene but not necessarily gloves, unless there is active bleeding or potential exposure to body fluids. The initial bath involves direct contact with body fluids, making it crucial to wear gloves for protection.
4. What is the primary role of meiosis in the production of sperm and ova?
- A. To reduce the chromosome number by half
- B. To increase the chromosome number
- C. To create identical copies of chromosomes
- D. To repair damaged chromosomes
Correct answer: A
Rationale: The correct answer is A. Meiosis is a type of cell division that reduces the chromosome number by half, resulting in the formation of sperm and ova. Choice B is incorrect because meiosis does not increase the chromosome number. Choice C is incorrect because meiosis creates genetically diverse gametes, not identical copies of chromosomes. Choice D is incorrect because meiosis does not primarily function to repair damaged chromosomes.
5. _____ is a life-threatening disease, characterized by high blood pressure that may afflict women late in the second or early in the third trimester.
- A. Rubella
- B. Syphilis
- C. Preeclampsia
- D. Phenylketonuria
Correct answer: C
Rationale: Preeclampsia is a serious pregnancy complication characterized by high blood pressure that typically occurs in the second half of pregnancy. If left untreated, it can lead to severe complications for both the mother and the baby. Rubella (choice A) is a viral infection that can harm the developing fetus but is not directly related to high blood pressure in pregnancy. Syphilis (choice B) is a sexually transmitted infection that can affect pregnancy but does not specifically cause high blood pressure. Phenylketonuria (choice D) is a genetic disorder that affects metabolism and is not associated with high blood pressure in pregnancy.
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