The nurse is assessing a 3-day-old preterm neonate with a diagnosis of respiratory distress syndrome (RDS). Which assessment finding indicates that the neonate's respiratory condition is improving?
Correct Answer: B
Rationale: RDS is a serious lung disorder caused by immaturity and the inability to produce surfactant, resulting in hypoxia and acidosis. Lung fluid, which occurs in RDS, moves from the lungs into the bloodstream as the condition improves and the alveoli open. This extra fluid circulates to the kidneys, which results in increased voiding. Therefore, normal urination is an early sign that the neonate's respiratory condition is improving (normal urinary output is 2 to 5 mL/kg/hour). Edema of the hands and feet occurs within the first 24 hours after the development of RDS as a result of low protein concentrations, a decrease in colloidal osmotic pressure, and transudation of fluid from the vascular system to the tissues. Systolic murmurs usually indicate the presence of a patent ductus arteriosus, which is a common complication of RDS. Respiratory rates above 60 are indicative of tachypnea, which is a sign of respiratory distress.