5 Factors that Impact Lymphoma Prognosis March 23, 2016June 29, 2016 by Chris Comish In Social Clips. The lactate dehydrogenase (LDH) level, which is measured in blood tests, determines the growth of the tumor. Patients with higher LDH are more likely to have fast-growing lymphomas. Print This Page Pages: 1 2 3 4 5