Mr. Jones is a 66-year old black man. He is a retired postal worker. PMHx includes HTN, a-fib, diabetes, HLD, gout, BPH, osteoarthritis in his knees. He quit smoking 5 years ago. His BP today is 160/90, HR 84. BMI 32. He is at increased risk for AAA. What is the preferred way to screen him for aortic aneurysm?
1) Palpation of the abdomen
2) Plain film of the abdomen
3) Abdominal CT scan
4) One-time ultrasound now