HESI Maternity 55 Questions

Correct Answer: D

Rationale: The correct answer is D. The likelihood of having a child with Down's syndrome increases as the age of the parents increases, particularly the mother's age. Choice A is incorrect because Down's syndrome is caused by an extra copy of chromosome 21, not a defect in the sex chromosomes. Choice B is incorrect as the symptoms of Down's syndrome and sickle-cell anemia are different. Choice C is also incorrect as Down's syndrome is not caused by a sexually transmitted infection during conception.

Correct Answer: B

Rationale: Inspecting the client's perineum immediately is necessary to assess if the baby is being delivered, which would require urgent action. Pushing the call light for help (Choice A) may delay the assessment and immediate action needed. Notifying a healthcare provider (Choice C) might cause further delays, as the situation requires urgent attention. Turning on the infant warmer (Choice D) is not the priority; ensuring safe delivery and assessment of the baby's condition come first.

Correct Answer: A

Rationale: The correct answer is A, the amniotic sac. The amniotic sac is a fluid-filled structure that surrounds and protects the developing embryo and fetus in the uterus. It provides a cushion against external pressure, allows for movement and growth, and helps maintain a stable environment for the developing fetus. Choices B, C, and D are incorrect. The umbilical cord connects the fetus to the placenta and serves as a conduit for nutrients and waste; the neural tube is a structure that forms the central nervous system in early embryonic development; and the embryonic disk is a structure that forms during gastrulation, one of the early stages of embryonic development.

Correct Answer: A

Rationale: Mothers usually feel the first fetal movements, known as 'quickening,' around the 18th to 20th week of pregnancy. Feeling fetal movements during the first month is unlikely and uncommon. Therefore, option B is incorrect. Options C and D are also incorrect as mothers typically do feel fetal movements during pregnancy, just not during the first month.

Correct Answer: A

Rationale: The correct answer is Hepatitis B. Newborns receive the Hepatitis B vaccine shortly after birth to provide protection against the virus. Rotavirus, Pneumococcal, and Varicella vaccines are typically administered at later stages of infancy or childhood, not immediately after birth. Rotavirus vaccine helps prevent severe diarrhea, Pneumococcal vaccine protects against infections like pneumonia and meningitis, and Varicella vaccine prevents chickenpox. However, these vaccines are not part of the routine immunizations given to newborns immediately after birth.