Mrs. Treet Meaplease is a 78 year old female with Stage IV small cell lung cancer. She has several other comorbidities, such as ESRD on dialysis, and CHF. Today when you see her, you notice that she has ptosis of her eyelid, as well as miosis of the pupil. She confesses to her arm feeling somewhat numb. You work in a center which has surgical, radiation, and medical oncologists. When considering cancer therapy, what is a patient factor for this patient?