**Cold Injury in Neonates**

**Core Concept**
Cold injury in neonates, also known as perinatal asphyxial encephalopathy or birth asphyxia, occurs due to exposure to cold temperatures immediately after birth. This condition can lead to various systemic complications, including hypoxia, acidosis, and inflammation.

**Why the Correct Answer is Right**
Cold injury in neonates is characterized by a range of symptoms, including hypothermia, metabolic acidosis, and cerebral edema. The pathophysiology involves the disruption of normal cellular function due to cold stress, leading to the release of various inflammatory mediators and the activation of cellular pathways involved in apoptosis and necrosis.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because cold injury in neonates is not typically associated with hypoglycemia. While glucose metabolism is affected in cold stress, hypoglycemia is not a characteristic feature of this condition.

**Option B:** This option is incorrect because metabolic acidosis is a common finding in cold injury in neonates. The acidosis is due to the accumulation of lactate and other acidic metabolites as a result of anaerobic metabolism.

**Option C:** This option is incorrect because cerebral edema is a characteristic feature of cold injury in neonates. The edema is due to the disruption of the blood-brain barrier and the accumulation of fluid in the brain tissue.

**Clinical Pearl / High-Yield Fact**
It is essential to recognize the symptoms of cold injury in neonates promptly and provide appropriate management, including rewarming and supportive care, to prevent long-term neurological damage.

**Correct Answer: D.**