A newborn with which of the following clinical manifestations should receive nasal CPAP?

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A newborn with tachypnea,nasal flaring,a PₐCO₂ of 50 mm Hg,a PₐO₂ of 50 mm Hg,and an FɪO₂ of 0.6 meets the criteria for nasal CPAP.A newborn with these findings has adequate minute ventilation,as evidenced by the PₐCO₂ of 50 mm Hg,but also has hypoxemia that is not being corrected by an FɪO₂ of 0.6.The newborn in option A (substernal retractions,PₐCO₂ = 65 mm Hg,PₐO₂ = 48 mm Hg,FɪO₂ = 0.4)does not have an adequate minute ventilation and requires some ventilatory assistance.Mechanical ventilation is indicated for the newborn in option C (grunting,substernal retractions,pH = 7.20,PₐCO₂ = 70 mm Hg,PₐO₂ = 40 mm Hg,FɪO₂ = 0.7),because this patient has respiratory acidosis and uncorrected hypoxemia.The newborn in option D (tachypnea,pale skin,pH = 7.32,PₐCO₂ = 45 mm Hg,PₐO₂ = 75 mm Hg,FɪO₂ = 0.21)has two of the physical indications for CPAP,but the ABG findings demonstrate adequate oxygenation.

A Newborn with Which of the Following Clinical Manifestations Should