A nurse is reassuring new parents whose infant develops caput succedaneum.
It is important that the nurse is aware that this condition:

Choice A rationale

An Intrauterine Device (IUD), whether copper or levonorgestrel-releasing, is a long-acting reversible contraceptive method that contains no estrogen. The levonorgestrel-releasing IUD releases only progestin, which is compatible with breastfeeding as it does not negatively impact milk supply or composition. Therefore, the IUD is a suitable option for the breastfeeding mother.

Choice B rationale

The Vaginal Ring is a combined hormonal contraceptive method, releasing both estrogen (ethinyl estradiol) and progestin (etonogestrel) systemically. Estrogen is known to inhibit prolactin secretion and interfere with the process of milk production (lactogenesis), leading to a reduction in breast milk supply, particularly in the first six weeks postpartum before lactation is well-established.

Choice C rationale

Oral progestins (mini-pill) contain only progestin, specifically a low dose of norethindrone, and no estrogen. Progestin-only pills are the preferred oral contraceptive for breastfeeding mothers because they do not affect breast milk volume, composition, or infant growth. They work by thickening cervical mucus and inhibiting ovulation to prevent pregnancy.

Choice D rationale

The Contraceptive Implant, which releases etonogestrel, is a progestin-only long-acting reversible contraceptive. Because it contains no estrogen, it does not compromise the maternal prolactin levels or milk supply and is considered safe and highly effective for use during breastfeeding, even immediately postpartum, making it a suitable choice. —.

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.