One of the earliest features of Neonatal sepsis is:
**Core Concept**
Neonatal sepsis is a life-threatening condition characterized by a systemic infection in newborns, often caused by bacteria such as Group B Streptococcus (GBS), Escherichia coli (E. coli), or Listeria monocytogenes. The early detection of neonatal sepsis is crucial for prompt initiation of antibiotic therapy and management.
**Why the Correct Answer is Right**
One of the earliest features of neonatal sepsis is a change in the infant's behavior, often referred to as "non-specific irritability." This can manifest as excessive crying, fussiness, or restlessness. As the infection progresses, the infant may exhibit other signs such as lethargy, poor feeding, or respiratory distress. The non-specific irritability is thought to be due to the release of pro-inflammatory cytokines and other mediators that affect the central nervous system.
**Why Each Wrong Option is Incorrect**
* **Option A:** While jaundice can be a feature of neonatal sepsis, it is not typically one of the earliest signs.
* **Option B:** Apgar score is a measure of a newborn's physical condition at birth, but it is not directly related to the early detection of neonatal sepsis.
* **Option C:** Temperature instability can be a feature of neonatal sepsis, but it is not usually one of the earliest signs.
**Clinical Pearl / High-Yield Fact**
In neonatal sepsis, the first 24-48 hours are critical for early detection and management. A high index of suspicion and prompt evaluation are essential to prevent long-term sequelae and improve outcomes.
**Correct Answer:** C. Temperature instability can be a feature of neonatal sepsis, but it is not usually one of the earliest signs.