Which symptom is the most likely consequence of elevated calcium levels?

The symptom most commonly associated with elevated calcium levels, a condition known as hypercalcemia, is increased thirst, which is also referred to as polydipsia. This occurs because high calcium levels can lead to increased renal secretion of calcium, resulting in a higher volume of urine production. Consequently, frequent urination, known as polyuria, often occurs alongside increased thirst as the body attempts to eliminate excess calcium.

While loss of appetite can occur with hypercalcemia, it is not as direct or common a symptom as increased thirst and frequent urination. Hypercalcemia can affect various bodily systems and may cause digestive symptoms, but the relationship between high calcium levels and an urgent need to drink is more pronounced and clinically significant. Therefore, increased thirst correctly reflects the physiological consequences of elevated calcium levels, highlighting the balance the body seeks to maintain in response to excess calcium.