AAA identified when diameter measured from outer wall to outer wall (including mural thrombus if present) is >3cm
Iliac vessels at bifurcation, outer wall to outer wall <1.5 cm
Abdominal<unk>  dissection can be identified as an intimal flap
Aortic ultrasound
Cardiac ultrasound
Age adjusted D-dimer
Bubble study
NEXUS Chest CT Rule
IVC ultrasound
ECG 
D-dimer