Correct Answer: A

Rationale: During pregnancy, gradual lordosis is a common adaptation to the growing fetus. Lordosis refers to an increased lumbar curve in the spine, which helps to shift the center of gravity forward, supporting the enlarging uterus. This change is necessary to maintain balance and reduce strain on the back muscles as the pregnancy progresses. Increased abdominal muscle tone, posterior neck flexion, and decreased mobility of pelvic joints are not typical physiological changes during pregnancy. Increased abdominal muscle tone is not expected as the abdominal muscles tend to stretch and separate to accommodate the growing fetus. Posterior neck flexion is not a common finding and decreased mobility of pelvic joints is not an expected change and can cause discomfort.

Correct Answer: D

Rationale: The correct answer is D, Postpartum blues. Postpartum blues, also known as baby blues, are common after childbirth and are characterized by symptoms like tearfulness, insomnia, lack of appetite, and a feeling of letdown. This condition is typically self-limiting and resolves without specific treatment. Postpartum fatigue (choice A) refers to extreme tiredness after childbirth but does not typically include symptoms like tearfulness and insomnia. Postpartum psychosis (choice B) is a severe condition that includes symptoms such as hallucinations and delusions, which are not present in the scenario. The letting-go phase (choice C) does not represent a specific postpartum condition related to the symptoms described.

Correct Answer: D

Rationale: A displaced and boggy fundus in a postpartum client typically indicates a full bladder, which can impede uterine contractions and increase the risk of postpartum hemorrhage. Assisting the client to the bathroom to void helps ensure the bladder is empty, aiding the fundus to contract and reducing the risk of complications. Encouraging Kegel exercises, changing positions, or assessing pain would not directly address the issue of the boggy fundus caused by a full bladder.

Correct Answer: D

Rationale: Covering the newborn's head with a cap is the highest priority immediately following birth to prevent heat loss. Newborns are at risk of hypothermia due to their immature thermoregulation, making it crucial to maintain their body temperature. By covering the newborn's head with a cap, heat loss through the head is minimized, helping to keep the baby warm and stable in the immediate post-birth period. Initiating breastfeeding, performing the initial bath, and giving a vitamin K injection are important interventions but are not as high a priority as ensuring the newborn's thermal stability.

Correct Answer: B

Rationale: The regression in toilet training is a common adverse sibling response to the birth of a new baby. When a new sibling arrives, the older child may revert to behaviors from an earlier stage, such as bedwetting, to gain attention or cope with feelings of insecurity. This behavior is temporary and often resolves with time and reassurance. Recommending counseling or preschool at this point would be premature and not addressing the underlying cause of the behavior.