A child with coarctation of the aorta will have dropdown pedal pulses and dropdown brachial pulses.
Explanation & Rationale
Rationale for Correct Choices: • Weak: Weak pedal pulses are typical because the narrowed aortic segment reduces blood flow to the lower extremities. This is a key clinical finding that often leads to suspicion of coarctation in children. • Strong: Brachial pulses are typically strong or bounding because the narrowing occurs after the vessels to the upper body branch off, allowing normal or increased perfusion to the arms. Rationale for Incorrect Choices: • Absent: Completely absent pedal pulses are uncommon in coarctation of the aorta unless the narrowing is extremely severe or there is complete arterial obstruction. Most clients will have diminished but still palpable pedal pulses. • Bounding: Bounding pedal pulses would indicate increased blood flow to the lower extremities, which is not seen in coarctation of the aorta. Instead, bounding pulses are usually found in the upper extremities in this condition. • Weak: Weak brachial pulses would suggest reduced blood flow to the upper extremities, which is inconsistent with the anatomy of coarctation where the narrowing is distal to these branches. • Thready: Thready pulses indicate low stroke volume or shock states, which are not characteristic of compensated coarctation. In coarctation, upper extremity pulses remain strong unless severe heart failure develops.