A 38-YEAR-OLD MAN PRESENTS WITH A BLOOD PRESSURE OF 170/100 IN THE RIGHT ARM, AND WEAK LEG PULSES, BUT NO RADIOFEMORAL DELAY. WHICH OF THE FOLLOWING IS TRUE

• A. Aortic coarctation is excluded by the absence of radiofemoral delay.
• B. Aortic coarctation remains highly likely ✓
• C. A cardiac ultrasound will diagnosis or exclude aortic coarctation reliably.
• D. A normal ECG excludes the diagnosis.
• E. Aortic angiography is the best means to diagnosis aortic coarctation

The presence of a 38-year-old man with a blood pressure of 170/100 in the right arm, weak leg pulses, but no radiofemoral delay indicates a high likelihood of aortic coarctation. Aortic coarctation is a condition characterized by narrowing of the aorta, leading to increased blood pressure in the upper body and decreased blood flow to the lower body. The absence of radiofemoral delay does not exclude aortic coarctation as other clinical signs such as elevated blood pressure in the arms and weak pulses in the legs are indicative of this condition.