Which of the following may cause hyperphosphatemia in enterally fed patients?

Hyperphosphatemia, which is an elevated level of phosphate in the blood, can indeed be influenced by various medications and interventions. In the context of enterally fed patients, certain factors can contribute to this condition.

Chemotherapeutic agents can disrupt the metabolism of phosphates, leading to increased serum levels. These medications often have a broad impact on the body's normal physiological processes, including the way phosphates are managed. For enterally fed patients, whose nutritional intake is already closely monitored, the additional influence of these agents can further complicate their electrolyte balance.

While each of the other options—MAOIs (monoamine oxidase inhibitors) and diuretics/laxatives—can potentially have impacts on electrolyte levels, they do not directly link to hyperphosphatemia in the same way. MAOIs primarily affect neurotransmitter levels and can have a range of side effects, but hyperphosphatemia is not commonly associated with their use. Diuretics and laxatives can lead to disturbances in electrolyte balance, but they more frequently cause hypokalemia or hyponatremia rather than hyperphosphatemia.

Understanding these dynamics is crucial for managing the nutrition and medication regimens of enterally fed patients to avoid complications associated