Which of the following is a clinical presentation of an ALTE?

A clinical presentation of an Apparent Life-Threatening Event (ALTE) typically includes color changes observed in the infant during the event. This color change can manifest as cyanosis (a bluish tint to the skin) or pallor, signaling that the infant may have experienced a significant decrease in oxygenation or may be in distress. These changes are critical indicators that prompt immediate evaluation and assessment of the infant’s cardiovascular and respiratory status.

Weight gain, behavioral changes, and excessive crying, while they may be observed in infants for various reasons, do not specifically correlate with the immediate clinical presentation of an ALTE. For instance, excessive crying is common in infants and might reflect frustration, hunger, or discomfort but does not indicate an acute medical situation like an ALTE. Weight gain and behavioral changes occur over longer periods and are less relevant to the sudden, critical nature of the events that define ALTEs. Therefore, color change stands out as the most direct and indicative symptom related to an ALTE.