Bedside ultrasound can be used to conduct compression testing on lower extremity vasculature to assess for<unk> 
Intended to be rapid, limited, but revealing most clinically significant<unk> s
Amongst ED providers, there is a sensitivity of 95% and specificity of 96%
DVT ultrasound
Ankle-brachial index
Thromboelastography 
IVC ultrasound
D-dimer
Aortic ultrasound
Bubble study
Age adjusted D-dimer