Respiratory Care Upper

CPT homework

Kyle Montgomery

Describe how to identify all lung segments on a CXR. Use anatomical structures that you can observe on a CXR.

Draw and label the proper postural drainage position for each lung segment. Basically each lung has 10 segments: the upper lobes contain 3 segments, the middle lobe / lingula 2 and the lower lobes 5, bilaterally, the upper lobes have apical, posterior and anterior segments and the lower lobes superior (apical) and 4 basal segments (anterior, medial, posterior and lateral) along with this basic symmetric anatomy shared between the lungs. Thew right lung has the right upper lobe and right middle lobe are separated by the horizontal fissure whereas the right lower lobe is separated from the right upper and middle lobes by the oblique fissure. The left lung has only two lobes with corresponding lobar bronchi, the left upper lobe and the left lower lobe are separated by the oblique or major fissure on the left. The lingula is part of the left upper lobe and roughly corresponds to the right middle lobe although the lingula is not considered a separate lobe in the left lung has no minor fissure. There are ten lung segments on the right and eight on the left although several of the segments on the left are sometimes double counted to arrive at a total of 10 segments on each side. On a PA chest radiograph you can see the 5 lobes starting from the right upper left, right middle left, and right lower lobes, on the left side you have the left upper lobe and the left lower lobe.

Works cited

Respiratory Care, Patient Assessment &Care Plan Development, David C Shelledy, Jay I. Peters, 2016 jones and bartlett learning

Assi AA, Nazal Y. Rib fracture: Different radiographic projections. Pol J Radiol. 2012 Oct;77(4):13-6. [PMC free article] [PubMed]