Does this patient have immune thrombocytopenia (ITP)?

In the inpatient setting, we often encounter patients with thrombocytopenia. But we are not always sure of the underlying cause. Could it be immune thrombocytopenia (ITP)? If so, how can we be sure of the ITP diagnosis? In this video, hematologist, Dr. Toyosi Onwuemene, discusses the importance of a thorough evaluation in making this diagnosis of exclusion.