This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'International prognostic index for lymphomas includes the following prognostic factors, except ? \nSelect and explain. \nA. Stage of disease, B. Number of extralymphatic sites involved, C. LDH, D. Hemoglobin and albumin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is D i.e., Hemoglobin and albumin The prognosis of patients with NHL is best assigned using the International Prognostic index (IPI). This is a powerful predictor of outcome in all subtypes of NHL. Patients are assigned on IPI score based on the presence or absence of five adverse prognostic factors i) Age > 60 years ii) Elevated serum LDH iii) Performance status 2 (ECOG) or 70 ( Karnofsky) iv) > I site of extranodal (extralymphatic ) involvement v) Ann Arbor Stage III or IV', 'role': 'assistant'}]