A lung finding without a location cannot be compared to the next nurse’s assessment. Click any site on the chest to learn the level, the reference line and the lobe lying underneath it, then take the challenge that catches the classic miss — the right middle lobe, which is never heard on the back. Build the four-step exam in its fixed order, and interpret a respiratory rate and saturation against real age ranges.
Every circle is a real auscultation or percussion site. Explore tells you what is under it. Find it names a lobe and asks you to click every site that overlies it.