What are expected symptoms in a child diagnosed with DiGeorge's Syndrome?

In the context of DiGeorge's Syndrome, hypocalcemia is a key symptom that arises due to the developmental issues related to the parathyroid glands, which are often absent or underdeveloped in affected individuals. These glands are responsible for producing parathyroid hormone (PTH), which regulates calcium levels in the blood. When they do not function properly, this leads to decreased calcium levels, hence causing hypocalcemia. Symptoms of hypocalcemia may include muscle twitching, cramps, or seizures, making it a critical factor for children diagnosed with this syndrome.

Other symptoms associated with DiGeorge's Syndrome include immunodeficiency, cardiac defects, and developmental delays but hypocalcemia particularly stands out among these due to its direct link to the dysfunction of the parathyroid glands. While the other options—osteoarthritis, renal failure, and respiratory distress—may present in various medical conditions, they are not characteristic symptoms of DiGeorge's Syndrome. Therefore, the identification of hypocalcemia as an expected symptom is accurate and reflects the underlying pathology of the condition.