Maternal mortality in the United States is the lowest of any industrialized country.

Choice A rationale

Visual impairment, including retinopathy of prematurity, results from immature retinal vascularization and oxidative damage caused by prolonged oxygen therapy in premature infants, leading to neovascularization and potential retinal detachment.

Choice B rationale

Sensitivity to touch reflects neurologic immaturity or overstimulation in premature infants but is not directly associated with oxygen therapy. It stems from underdeveloped sensory pathways and an immature central nervous system.

Choice C rationale

Hyperbilirubinemia arises from excessive bilirubin production or impaired hepatic clearance in neonates, unrelated to oxygen therapy. Factors include hemolysis, immature liver enzyme systems, or delayed feeding initiation.

Choice D rationale

Cerebral palsy, a motor disorder due to non-progressive brain injury, can result from perinatal asphyxia or intracranial hemorrhage, but it is not a direct outcome of oxygen therapy in premature infants.

Choice A rationale

Postpartum depression with psychotic features may lead to suicidal ideation or infanticidal tendencies due to delusions or hallucinations. Ensuring safety is critical to prevent harm to both mother and infant.

Choice B rationale

Anger outbursts, though concerning, do not pose immediate threats like harm to self or infant. Addressing this behavior is secondary to prioritizing safety in severe postpartum psychosis cases.

Choice C rationale

Neglecting hygiene reflects depressive symptoms but does not indicate psychosis severity or imminent danger. Primary focus remains on managing safety risks to the mother and infant.

Choice D rationale

Losing trust in her husband is relevant to interpersonal stress but does not constitute a primary care concern. The immediate threat of harm takes precedence over marital dynamics.