After a thyroidectomy, which assessment finding should lead the nurse to check for hypocalcemia?

Following a thyroidectomy, one potential complication is damage to the parathyroid glands, which can lead to hypoparathyroidism and subsequent hypocalcemia. Tingling around the mouth, also known as perioral paresthesia, is a classic symptom of hypocalcemia. This tingling sensation occurs because low calcium levels affect neuromuscular excitability, leading to increased neuronal firing and a sensation of tingling or numbness.

In this context, the presence of tingling around the mouth should prompt the nurse to assess further for hypocalcemia, as it is a direct indicator of low calcium levels. Monitoring calcium levels becomes crucial in the post-operative care of a thyroidectomy patient to prevent possible complications related to hypocalcemia, such as muscle spasms or severe cardiac issues.

Other symptoms such as an increased heart rate may indicate various cardiovascular issues; a severe headache could result from numerous factors unrelated to calcium levels, and decreased urine output does not specifically correlate with hypocalcemia. Hence, the correct assessment finding is the tingling sensation around the mouth, signaling a need for further evaluation of calcium levels.