A woman gave birth to a 7-pound, 3-ounce infant boy 2 hours ago.

The nurse determines that the woman's bladder is distended because her fundus is now 3 cm above the umbilicus and to the right of the midline.

In the immediate postpartum period, the most serious consequence likely to occur from bladder distention is:

Choice A rationale

PPROM stands for Preterm Premature Rupture of Membranes, meaning the rupture occurs before 37 weeks of gestation (preterm) and before the onset of labor (premature). This patient is at 37 weeks, which is considered full term (or early term), and the rupture of membranes (SROM) occurred after the onset of contractions, which is termed rupture of membranes (ROM) or SROM.

Choice B rationale

PPROM is the rupture of the amniotic sac (bag of waters) occurring before 37 weeks of gestation (preterm) and before the onset of labor (premature). This patient is at 36 weeks (preterm, as the normal range is 37-42 weeks), and the membranes ruptured at 21: at home, suggesting it happened before the onset of active, regular uterine contractions that mark labor initiation.

Choice C rationale

This describes a possible urinary tract infection (UTI) or pyelonephritis (flank pain). While infection is a risk factor for PPROM and preterm labor, the symptoms described are not the definition of PPROM, which is a rupture of the membranes (often described as a gush or trickle of fluid) before 37 weeks gestation. The symptoms relate to maternal health, not specifically the membrane status.

Choice D rationale

This patient is at 39 weeks of gestation, which is considered full term. Even if the membranes ruptured before the onset of labor (PROM), it is not preterm rupture of membranes (PPROM). The term used for membrane rupture at or after 37 weeks is typically Premature Rupture of Membranes (PROM), or simply SROM if labor has started. —. ##

Choice A rationale

While drying does remove blood and amniotic fluid, the primary scientific rationale is thermoregulation. Removing superficial contaminants is secondary to preventing cold stress. Allowing the wet skin to air dry would cause rapid, dangerous cooling, a more significant threat than the mere presence of maternal blood.

Choice B rationale

The drying and vigorous stimulation do not specifically increase blood flow to the distal extremities (hands and feet). The initial drying is the first step in preventing evaporative heat loss, which is paramount to maintaining the infant's core body temperature and promoting stable transition to extrauterine life.

Choice C rationale

Stimulating the infant by rubbing the back or soles of the feet does encourage crying, which helps expand the lungs and clear fluid. However, the most immediate and critical scientific reason for thorough drying is to prevent significant evaporative heat loss, which accounts for a large percentage of neonatal heat loss.

Choice D rationale

Water on the skin surface rapidly evaporates, and because a significant amount of heat is required to change water from liquid to vapor (latent heat of vaporization), this evaporation causes rapid and significant body heat loss. Thorough, immediate drying eliminates the largest source of cold stress for a newborn, preventing a drop in core temperature.