© 2021 Informa UK Limited, trading as Taylor & Francis Group.There are only a few predictive markers that can truly aid therapy decisions in patients with acute myeloid leukemia (AML). The current study aimed to examine the impact of easily available common laboratory parameters on the course and prognosis of patients with AML. Gender, initial bone marrow blast percentage, mean platelet volume (MPV), lymphocyte-to-monocyte ratio, treatment regimen, and complete remission (CR1) were found to have a statistically significant effect on both OS and PFS (p < 0.05). Only MPV, LDH, and initial treatment regimen were found to have a significant effect on CR1 achievement (p < 0.05). According to the current study, besides the induction regimen, only MPV was seen to affect short and long-term outcomes including both CR achievement, OS and PFS. MPV can be considered as a predictive or prognostic marker in patients with AML. Patients with higher MPV at the time of diagnosis should be evaluated carefully.