ATI LPN
ATI LPN N105 Maternity Exam Questions
Extract:
None
Question 1 of 5
The nurse is presenting a conference on gene dominance. What does the nurse report as the percentage of children carrying the dominant gene if one parent has a dominant gene and the other parent does not?
Correct Answer: B
Rationale: If one parent is heterozygous for a dominant gene and the other has two recessive alleles, each child has a 50% chance of inheriting the dominant gene, per Mendelian inheritance.
Question 2 of 5
A nurse is reinforcing teaching of a newly licensed nurse about hyperemesis gravidarum. Which of the following statements by the newly licensed nurse indicates the reinforced teaching was effective?
Correct Answer: C
Rationale: Elevated hCG levels are linked to hyperemesis gravidarum, contributing to severe nausea and vomiting. Decreased saliva, gastric secretions, or second-trimester onset are incorrect.
Question 3 of 5
Where is the most common site for fertilization?
Correct Answer: C
Rationale: Fertilization typically occurs in the outer third of the fallopian tube near the ovary, where the sperm meets the egg post-ovulation. The uterus is for implantation, not fertilization.
Extract:
14-year-old boy at pediatric clinic
Question 4 of 5
A 14-year-old boy is at the pediatric clinic for a checkup. What physical changes of puberty will the nurse indicate are related to the production of testosterone?
Correct Answer: B
Rationale: Testosterone increases muscle mass and strength during puberty. It also increases sebaceous gland activity, not decreases it, and does not directly affect white cells, platelets, or small bone growth.
Extract:
None
Question 5 of 5
A nurse is assisting with the preparation of an educational program on physiological changes during labor. Which of the following smooth muscle adaptations should the nurse identify as being responsible for facilitating cervical dilation and promoting descent of the fetus into the client pelvis and vaginal canal?
Correct Answer: A
Rationale: Uterine smooth muscle relaxation and contractions facilitate cervical dilation and fetal descent. Cervical constriction, pelvic stretching, and vaginal contractions are not primary mechanisms.