What test may indicate hypocalcemia through arm or carpal spasms?

The test that may indicate hypocalcemia through arm or carpal spasms is Trousseau's sign. This phenomenon occurs when pressure is applied to the arm, particularly through a blood pressure cuff. If hypocalcemia is present, the muscles of the arm can spasmodically contract, resulting in a characteristic bending of the wrist and fingers. This reaction is indicative of neuromuscular excitability associated with low calcium levels in the blood, highlighting the relationship between calcium deficiency and neuromuscular function.

Understanding this sign is essential in clinical practice, as it can help identify patients at risk for complications related to hypocalcemia, facilitating timely intervention and management of their condition. The other options listed do not assess for hypocalcemia or are related to different neurological or systemic evaluations.