Correct Answer: C

Rationale: Plantar creases covering 2/3 of the sole is an important physical characteristic used to assess gestational age in a newborn. This finding is significant because as gestational age advances, the plantar creases cover a larger portion of the sole. It is a valuable clue to the healthcare provider in determining the newborn's maturity level. Choices A, B, and D are incorrect as they do not specifically relate to gestational age assessment. Acrocyanosis and vernix caseosa are common findings in newborns but are not directly used for determining gestational age. The softness and level of the anterior fontanel can provide information about intracranial pressure but are not directly related to gestational age assessment.

Correct Answer: D

Rationale: The correct answer is D. In a persistent occiput posterior position, the baby's head presses against the mother's spine, causing prolonged labor and severe backache. This position can lead to difficulties in labor progress and increase discomfort for the mother. Choices A, B, and C are incorrect as they do not directly relate to the client's difficult, prolonged labor with severe backache. Fetal attitude, fetal lie, and maternal pelvis type may affect labor, but in this scenario, the persistent occiput posterior fetal position is the primary contributing cause for the client's symptoms.

Correct Answer: B

Rationale: A surge of energy is a common sign that precedes labor. This burst of energy, often referred to as the 'nesting instinct,' is believed to occur as the body prepares for labor, prompting the individual to undertake tasks to prepare for the arrival of the baby. Decreased vaginal discharge is not a typical sign preceding labor. Urinary retention is not a sign that precedes labor and may indicate another issue. Weight gain of 0.5 to 1.5 kg is not a specific sign of impending labor.

Correct Answer: A

Rationale: The yellow skin observed in the newborn suggests jaundice. Maternal/newborn blood group incompatibility is a common cause of jaundice in newborns. This occurs when the mother and baby have different blood types, leading to the baby's immune system attacking the red blood cells, causing jaundice. Physiologic jaundice, which is a normal process due to the breakdown of red blood cells in newborns, typically presents after the first 24 hours of life. Absence of vitamin K leads to bleeding issues, not jaundice. Maternal cocaine abuse does not directly cause jaundice in newborns.

Correct Answer: B

Rationale: Kegel exercises are beneficial during pregnancy to help strengthen pelvic muscles, which is crucial for childbirth. Pelvic muscle stretching during birth is a key aspect of labor, making choice B the correct statement indicating understanding of the teaching. Choices A, C, and D are incorrect because Kegel exercises primarily focus on strengthening pelvic floor muscles to support the uterus, bladder, and bowel, aiding in labor and delivery. They are not directly related to preventing constipation, decreasing backaches, or preventing stretch marks.