A client who is at 39 weeks of gestation and is in active labor has fetal heart tones located above the umbilicus at midline. The fetus is likely in which of the following positions?

Correct Answer: D

Rationale: The correct answer is D: Frank breech. In a frank breech position, the buttocks of the fetus are presenting first, which is why the fetal heart tones can be heard above the umbilicus at midline. In this position, the feet are near the head, causing the buttocks to be the presenting part. Choices A, B, and C are incorrect because in a cephalic position, the head would be presenting, in a transverse position, the baby would be lying sideways, and in a posterior position, the baby's back would be against the mother's back.

Correct Answer: B

Rationale: The correct answer is B because implantation actually occurs around 6-10 days after fertilization, not after conception. This is a critical distinction as conception refers to the union of sperm and egg to form a zygote, while fertilization specifically refers to the fusion of the genetic material. Therefore, the statement by the newly licensed nurse is inaccurate and requires intervention. A: Fertilization typically occurs in the outer third of the fallopian tube, making this statement correct. C: Sperm can indeed remain viable in the woman's reproductive tract for 2 to 3 days, indicating this statement is accurate. D: Bleeding or spotting can indeed accompany implantation, making this statement correct. In summary, choice B is incorrect because implantation occurs around 6-10 days after fertilization, not conception. Choices A, C, and D are all correct statements related to conception and fertilization.

Correct Answer: B

Rationale: The correct answer is B: Every morning before arising. This is because basal body temperature is the lowest body temperature attained during rest, typically just before waking up. Checking the temperature at this time provides the most accurate measurement of basal temperature. Options A, C, and D are incorrect because ovulation typically occurs around 14 days before the start of the next menstrual period, not on days 13 to 17 specifically (A), 1 hour following intercourse is not a reliable indicator of ovulation (C), and basal temperature should be checked in the morning, not before going to bed at night (D).

Correct Answer: C

Rationale: The correct answer is C: Lecithin/sphingomyelin (L/S) ratio of 2:1. This ratio indicates fetal lung maturity as it signifies adequate production of surfactant in the fetal lungs, essential for proper lung function after birth. Absence of Phosphatidylglycerol (PG) (Choice A) indicates immaturity, Biophysical profile score of 8 (Choice B) assesses overall fetal well-being, not lung maturity, and Reactive nonstress test (Choice D) evaluates fetal well-being, not lung maturity. The L/S ratio of 2:1 is the most reliable indicator of fetal lung maturity.

Correct Answer: D

Rationale: The correct sequence of maternal changes when planning to become pregnant is A) Amenorrhea, C) Goodell's sign, D) Quickening, and B) Lightening. Amenorrhea is the absence of menstruation, indicating possible pregnancy. Goodell's sign is the softening of the cervix and vagina. Quickening is the first fetal movements felt by the mother. Lightening occurs as the baby drops lower into the pelvis. This sequence reflects the chronological order of physiological changes during pregnancy. Choices A, B, and C do not follow the correct sequence of maternal changes as outlined in pregnancy progression.