Final answer:
The most indicative sign of inadequate breathing in an infant is apnea. It is a serious condition that may lead to several health complications, including sudden infant deaths. Deficiencies in respiratory function, especially in premature babies who lack pulmonary surfactant, are critical conditions requiring immediate medical care.
Step-by-step explanation:
Among the signs of inadequate breathing in an infant, apnea, or the cessation of breathing, is the most indicative. This condition is particularly dangerous as it may lead to severe consequences such as stroke, heart failure, and the risk of sudden infant deaths (SID). Seeing an infant with difficulties in inflating the lungs may also be a sign, as it often results from a lack of sufficient pulmonary surfactant production, common in premature births.
The five Apgar criteria, including heart rate and respiration, assess an infant's physical condition at birth. Poor scores in these areas, particularly if below a certain threshold, indicate an immediate need for medical intervention. It is crucial for infants, especially those who are premature, to have an effective breathing pattern, as respiratory issues can be life-threatening and may require urgent medical attention.