There are a number of barriers to care when discussing anticoagulation therapy for pediatric patients. Frequent venous blood draws represent a painful procedure that elicit anxiety and fear which leads to noncompliance. In addition, children are more difficult to obtain blood samples because of smaller vessels, patient movement during procedure, and the volume of blood that is required for the test. Other barriers include the time delay from when the patient has the lab work drawn, to when the result get to the provider for any patient care decisions to be made.