What is a common clinical sign of hypocalcemia in neonates?

• A. Hyperactivity.
• B. Jitteriness or seizures.
• C. Weight gain.
• D. Hypertension.

Answer: (B)

Neuromuscular irritability from low calcium is the hallmark in newborns. When calcium is low, nerve membranes become more easily excited, so the baby often presents with jitteriness and can progress to seizures. This neuromuscular irritability explains why jitteriness or seizures is the most consistent sign of neonatal hypocalcemia. Other options like hyperactivity, weight gain, or hypertension don’t reflect this increased neuromuscular excitability, which is why they’re not typical features in this context.