Nokea
Six to twelve hours after the vaginal delivery of a single infant and placenta, the uterine fundus should be palpable at or below the level of the
- A. pubic symphysis
- B. umbilicus
- C. epigastrium
Correct Answer: B
Rationale: The fundus typically rises to the level of the umbilicus within 6-12 hours postpartum.
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The layer of uterine tissue that responds to cyclic changes in hormones secreted by the pituitary gland is the:
- A. Perimetrium.
- B. Myometrium.
- C. Endometrium.
- D. NA
Correct Answer: C
Rationale: The endometrium undergoes cyclic changes in response to estrogen and progesterone, regulated by the pituitary gland.
The part of the vulva that is composed of erectile tissue and is located just behind the junction of the labia minora is called the:
- A. Mons pubis
- B. Clitoris
- C. Urinary meatus
- D. Labia majora
Correct Answer: B
Rationale: The clitoris is composed of erectile tissue and is located just behind the junction of the labia minora.
In the immediate postpartal period, a woman's gastric motility is generally
- A. within normal limits
- B. increased
- C. decreased
Correct Answer: C
Rationale: Gastric motility decreases postpartum, affecting digestion and absorption.
Choose the girl who is most likely to have secondary amenorrhea.
- A. Amanda, 15 years old, who is trying out for the school track team for girls
- B. Brittney, 17 years old, who is preparing for a national gymnastic tournament
- C. Chloe, 16 years old, who controls type 1 diabetes mellitus with insulin
- D. Deanna, 16 years old, who is a member of an Irish dance team
Correct Answer: B
Rationale: Intense physical activity and low body fat, common in gymnasts, can lead to secondary amenorrhea due to hormonal imbalances.
Dichorionic-diamniotic twins result from separation of embryonic cells at the:
- A. Four-cell stage
- B. Blastocyst stage
- C. Implantation stage
- D. Trilaminar disc stage
Correct Answer: A
Rationale: The correct answer is A: Four-cell stage. Dichorionic-diamniotic twins occur when the embryo splits into two separate embryos very early in development, typically at the four-cell stage. At this stage, each embryo will have its own chorion and amnion, leading to separate placentas and amniotic sacs. Choices B, C, and D occur later in development and do not result in the formation of two separate embryos with their own chorion and amnion, making them incorrect for the scenario of dichorionic-diamniotic twins.