For newborns experiencing transient tachypnea (TTN), what do grunting, nasal flaring, and chest retractions signify?
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✓ Correct answer: A. An attempt to maintain adequate lung expansionAnswer: An attempt to maintain adequate lung expansion For newborns with TTN, the fluid in the lungs can lead to difficulty in breathing, resulting in reduced lung expansion. Grunting and nasal flaring are mechanisms to create positive end-expiratory pressure (PEEP) to keep alveoli open, while chest retractions indicate the effort needed to breathe effectively. Energy conservation is critical for sick newborns and is often shown by decreased activity. Upper airway resistance is due to nasal or pharyngeal structural factors, and airway obstruction is typically due to mucus or congenital issues, which are not alleviated by grunting or retracting.
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