A nurse is assisting in planning care for a client who has advanced multiple myeloma. When planning care, the nurse should recognize that the client is at risk for which of the following complications?

A. Gastrointestinal bleeding is not a common complication of multiple myeloma unless there is thrombocytopenia or medication-related effects. B. Myxedema is associated with severe hypothyroidism, not multiple myeloma. C. Retinopathy is typically related to diabetes or hypertension, not multiple myeloma. D. Pathologic fractures are common in multiple myeloma due to bone destruction caused by malignant plasma cells, making this a key complication to monitor and prevent.