What is a primary symptom of hypercalcemia due to metastatic cancer to the bones?

In the context of hypercalcemia due to metastatic cancer to the bones, confusion is a primary symptom linked to the elevated calcium levels in the blood. Hypercalcemia can lead to a range of neurological symptoms, and confusion can manifest due to the effects of high calcium on the central nervous system.

When calcium levels rise significantly, it can cause an alteration in mental status, including confusion and cognitive dysfunction. Additionally, hypercalcemia can present with other symptoms such as fatigue, weakness, and in more severe cases, may progress to stupor or coma.

While delirium is also a manifestation of altered mental status, confusion can be considered a more fundamental symptom that often precedes or accompanies delirium in patients experiencing hypercalcemia. Recognizing confusion as a primary symptom enables healthcare providers to quickly act to address the underlying hypercalcemia and mitigate potential complications.