If the rib encountered in the first view is likely to be 2nd rib, how could the subsequent rib when moving probe caudad be the 2nd rib?!?! If the first statement is correct, you demonstrated that the subsequent view should identify the 3rd and 4th rib
You stated a rib under the axillary artery and vein is most likely the 2nd rib however, you scan caudally and the next rib that showed up you labeled as the 2nd rib. Please clarify.