Which statements about TTN are true?
1. TTN and neonatal pneumonia have different clinical signs.
2. The need for mechanical ventilation in TTN is rare.
3. A small number of infants with TTN eventually have persistent pulmonary hypertension.
4. Intravenous administration of antibiotics should be considered.
a. 2 only
b. 3 only
c. 1, 2, and 3 only
d. 2, 3, and 4 only
ANS: D
Because TTN and neonatal pneumonia have similar clinical signs, intravenous administration of antibiotics should be considered for at least 3 days after appropriate culture samples are obtained. The need for mechanical ventilation is rare and probably indicates a complication. Clearing of the lungs evident on both a chest radiograph and with clinical improvement usually occurs within 24 to 48 hr. A small number of infants with TTN eventually have persistent pulmonary hypertension.
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